Thursday, August 2, 2012

Griseofulvin


Class: Antifungals, Miscellaneous
VA Class: AM700
CAS Number: 126-07-8
Brands: Grifulvin V, Gris-PEG

Introduction

Antifungal antibiotic produced by Penicillium.104 125


Uses for Griseofulvin


Dermatophytoses


Treatment of dermatophytoses of the skin, scalp, and nails, including tinea barbae (ringworm of bearded areas of face and neck), tinea capitis (scalp ringworm), tinea corporis (ringworm of the body), tinea cruris (jock itch; groin ringworm), tinea pedis (athlete’s foot, foot ringworm), and tinea unguium (onychomycosis; nail ringworm) caused by Trichophyton, Microsporum, or Epidermophyton floccosum.104 125


A drug of choice for treatment of tinea capitis;124 131 132 133 135 140 141 prolonged therapy usually is necessary to cure the infection and poor compliance may affect response to the drug.131 135 138 140 141 Tinea barbae and tinea capitis generally require treatment with an oral antifungal.124 131 135 137 140


Tinea corporis and tinea cruris generally can be effectively treated using a topical antifungal; an oral antifungal may be necessary if the disease is extensive, dermatophyte folliculitis is present, the infection does not respond to topical therapy, or the patient is immunocompromised or has coexisting disease (e.g., diabetes mellitus).124 130 131 132 133 134 136 140


While topical antifungals usually are effective for treatment of acute, uncomplicated tinea manuum and tinea pedis,124 131 132 134 136 140 an oral antifungal usually is necessary for treatment of severe, chronic, or recalcitrant tinea pedis,124 chronic moccasin-type (dry-type) tinea pedis, and for treatment of tinea unguium (onychomycosis).131 134 136 140


Griseofulvin Dosage and Administration


Administration


Oral Administration


Administer orally.104 125


When microsize griseofulvin (Grifulvin V) tablets are used, absorption may be improved if given after a high-fat meal.125


Dosage


Dosage varies depending on whether the drug is administered as griseofulvin microsize (Grifulvin V) or griseofulvin ultramicrosize (Gris-PEG).104 124 125


Dosage and duration of treatment should be individualized according to the requirements and response of the patient.104 104 Griseofulvin generally should be continued for ≥4–12 weeks for treatment of tinea capitis;104 124 125 132 133 135 140 141 ≥2–4 weeks for treatment of tinea corporis;104 124 125 ≥4–8 weeks for tinea pedis; and from 4–6 months to a year or longer for tinea unguium.104 124 125


Pediatric Patients


Dermatophytoses

Microsize (Grifulvin V)

Oral

10–11 mg/kg daily, although dosages up to 20–25 mg/kg daily have been used.124 125 140


Manufacturer suggests that those weighing approximately 14–23 kg may receive 125–250 mg daily and that those weighing >23 kg may receive 250–500 mg daily.125


AAP recommends 10–20 mg/kg (maximum 1 g) daily in 1 or 2 doses.124 For tinea capitis, AAP recommends 15–20 mg/kg once daily.124


Ultramicrosize (Gris-PEG)

Oral

Children >2 years of age: Usually 7.3 mg/kg daily,104 although dosages up to 10–15 mg/kg daily have been used.140


Manufacturer suggests that those weighing approximately 16–27 kg may receive 125–187.5 mg daily and those weighing >27 kg may receive 187.5–375 mg daily.104


AAP recommends 5–10 mg/kg (maximum 750 mg) once daily.124


Adults


Dermatophytoses

Microsize (Grifulvin V)

Oral

500 mg daily for treatment of tinea capitis, tinea corporis, or tinea cruris.125 For more difficult infections (e.g., tinea pedis, tinea unguium), 1 g daily.125


Ultramicrosize (Gris-PEG)

Oral

375 mg once daily or in divided doses for treatment of tinea capitis, tinea corporis, or tinea cruris.104 For more difficult infections (e.g., tinea pedis, tinea unguium), 750 mg daily given in divided doses.104


Cautions for Griseofulvin


Contraindications



  • Hypersensitivity to griseofulvin.104 125




  • Porphyria or hepatocellular failure.104 125




  • Pregnant women.104 125 (See Fetal/Neonatal Morbidity and Mortality under Cautions.)



Warnings/Precautions


Warnings


Fetal/Neonatal Morbidity and Mortality

May cause fetal toxicity when administered to pregnant women.101 104 111 117 118 125


Some animal studies indicate that griseofulvin may be embryotoxic and teratogenic.101 104 106 113 114 115 116 125 There have been 2 cases of conjoined twins born to women who received griseofulvin during the first trimester of pregnancy; some women who received the drug during pregnancy reportedly have had spontaneous abortions or delivered infants with other congenital malformations.101 104 111 117 118 104 125


Griseofulvin should not be used in women who are pregnant104 125 or intend to become pregnant within 1 month after treatment.125


Women should use additional contraceptive precautions during griseofulvin treatment and for 1 month after the drug is discontinued.125 One manufacturer recommends that men wait at least 6 months after completing griseofulvin treatment before fathering a child.125


If a patient becomes pregnant while receiving griseofulvin, they should be advised of the potential hazard to the fetus.104


Sensitivity Reactions


Hypersensitivity Reactions

Hypersensitivity reactions (e.g., rash, urticaria, erythema multiforme-like reactions, angioneurotic edema) have been reported.104


Because griseofulvin is derived from Penicillium, there is a possibility of cross-sensitivity with penicillin.104 125 Patients with known penicillin hypersensitivity have received griseofulvin without such reactions.104 125


If hypersensitivity reaction occurs, discontinue griseofulvin and initiate appropriate therapy.104


Photosensitivity Reactions

Photosensitivity reactions have been reported.104 125 Lupus erythematosus may be aggravated if a photosensitivity reaction occurs.125


Avoid exposure to intense natural or artificial sunlight during griseofulvin treatment.104


General Precautions


Selection and Use of Antifungals

Prior to administration of griseofulvin for dermatophytoses, diagnosis should be confirmed either by direct microscopic examination of scrapings from infected tissue mounted in potassium hydrochloride (KOH) or by culture.104 125


Should not be used for treatment of minor or trivial dermatophytoses that may respond to topical antifungals alone.104 125


General hygiene measures should be observed to control sources of infection or reinfection.104 125 Concomitant use of topical antifungals or antibacterials may be required, particularly for treatment of tinea pedis (athlete’s foot, foot ringworm).104 125 In some forms of tinea pedis, yeasts and bacteria may also be involved and griseofulvin is ineffective against these organisms.104 125


Not effective and should not be used for treatment of pityriasis (tinea) versicolor or cutaneous Candida infections.104 125 a


Not effective and should not be used for treatment of systemic fungal infections, including blastomycosis, candidiasis, chromoblastomycosis, coccidioidomycosis, cryptococcosis, histoplasmosis, or sporotrichosis.104 125 a Safety and efficacy not established for prevention of fungal infections.104 125


Not effective and should not be used for treatment of bacterial infections, including actinomycosis or nocardiosis.104 125


Laboratory Monitoring

Periodically assess organ system functions, including renal, hepatic, and hematopoietic, during prolonged therapy.104 125


Specific Populations


Pregnancy

Category C.b (See Fetal/Neonatal Morbidity and Mortality under Cautions.)


Pediatric Use

Safety and efficacy of ultramicrosize griseofulvin not established in children ≤2 years of age.104 Microsize griseofulvin has been used in children as young as 3 months of age.138


Hepatic Impairment

Contraindicated in patients with hepatocellular failure.104


Common Adverse Effects


Hypersensitivity reactions (rash, urticaria); GI effects (oral thrush, nausea, vomiting, epigastric distress, diarrhea); CNS effects (headache, fatigue, dizziness, insomnia, mental confusion, impaired performance of routine activities).104 125


Interactions for Griseofulvin


Specific Drugs



























Drug



Interaction



Comments



Alcohol



Tachycardia, flushing, and potentiation of alcohol effects has been reported in patients receiving griseofulvin104 a



Although clinical importance is unclear, some clinicians suggest that patients be warned of a possible reaction and to avoid alcohol during griseofulvin therapya



Anticoagulants, oral (warfarin)



Decreased PT reported104 125 a



Use concomitantly with caution; adjust anticoagulant dosage if needed during and after griseofulvin treatment104 125 a



Aspirin



Possible decreased plasma salicylate concentrations127



Barbiturates



Possible decreased antifungal activity104 125


Phenobarbital: Possible decreased griseofulvin concentrationsa



Dosage adjustment of griseofulvin may be necessary104 125


Phenobarbital: Avoid concomitant use;a if concomitant use is necessary, administer griseofulvin in 3 divided doses daily to maximize absorption, monitor griseofulvin concentrations, and adjust dosage of the antifungal if necessarya



Cyclosporine



Possible decreased concentrations of cyclosporine128



Hormonal contraceptives (oral contraceptives)



Amenorrhea, increased breakthrough bleeding, and possibility of decreased contraceptive efficacy reported with concomitant use100 104 105 125



The possibility of decreased contraceptive efficacy should be considered if griseofulvin is used concomitantly100 105 129



Theophylline



Increased clearance and decreased theophylline half-life reported in some patients; extent of this interaction appears to vary and increased clearance of theophylline is not evident in all individuals who receive the drugs concomitantly126


Griseofulvin Pharmacokinetics


Absorption


Bioavailability


Absorption of microsize griseofulvin is variable125 and unpredictable and ranges from 25–70% of an oral dose;a peak serum concentrations attained 4 hours after a dose.125


Ultramicrosize griseofulvin is almost completely absorbed following oral administration.a


Food


Absorption of microsize griseofulvin may be enhanced by administration after a high-fat meal.125 a


Distribution


Extent


Following oral absorption, griseofulvin is concentrated in skin, hair, nails, liver, fat, and skeletal muscles.a The drug can be detected in the outer layers of the stratum corneum soon after ingestion.a


Griseofulvin is deposited in keratin precursor cells and has greater affinity for diseased tissue.104 The drug is tightly bound to new keratin.104


Griseofulvin concentrations in skin are higher in warm climates than in cold, possibly because the drug is dissolved in perspiration and deposited in the horny layer of skin when perspiration evaporates.a This explanation has also been used to account for the reversed concentration gradient of the drug in skin; highest concentrations are found in the outermost horny layer, while concentrations are much lower in deeper layers.a


Elimination


Metabolism


Oxidatively demethylated and conjugated with glucuronic acid, principally in the liver.a The major metabolite, 6-desmethylgriseofulvin, is microbiologically inactive.a


Elimination Route


About 30% of a single oral dose of microsize griseofulvin is excreted in urine within 24 hours as 6-desmethylgriseofulvin and its glucuronide conjugate; 50% of the dose is excreted in urine within 5 days.a Unchanged griseofulvin in the urine accounts for <1% of the administered drug.a Approximately one-third of a single dose of microsize griseofulvin is excreted in feces within 5 days.a Griseofulvin also is excreted in perspiration.a


Half-life


9–24 hours.a


Stability


Storage


Oral


Tablets

Microsize or ultramicrosize: 15–30°C in tight, light-resistant container.104 125


Suspension

Microsize: Room temperature in tight, light-resistant container.125


Actions and SpectrumActions



  • Structurally unrelated to other antifungals (e.g., allylamines, azoles, echinocandins, polyenes, pyrimidines).a




  • Usually fungistatic in action.104 125 a




  • Antifungal activity principally involves disruption of the fungal cell’s mitotic spindle structure.a Although the effect on mitosis is similar to that caused by colchicine, a different mechanism is probably involved.a Griseofulvin may cause production of defective DNA which is unable to replicate.a




  • Griseofulvin is deposited in keratin precursor cells and is tightly bound to new keratin, resulting in an environment unfavorable for fungal invasion.104 125 a Infected skin, hair, or nails are then replaced with tissue not infected with the dermatophyte.125 a




  • Limited spectrum of antifungal activity.104 125 a Active against most dermatophytes, but not active against yeasts or other fungi, including Aspergillus, Blastomyces, Candida, Cryptococcus, Coccidioides, Histoplasma, Saccharomyces, Sporotrichum, or Malassezia furfur (Pityrosporum orbiculare).104 125 a




  • Dermatophytes: Active against Epidermophyton floccosum, Microsporum audouini, M. canis, M. gypseum, Trichophyton crateriform, T. gallinae, T. interdigitalis, T. megnini, T. mentagrophytes, T. rubrum, T. schoenleinii, T. sulphureum, T. tonsurans, and T. verrucosum.104 125



Advice to Patients



  • Importance of using griseofulvin for the full, prescribed treatment period, even if symptoms improve; importance of consulting with clinician if the condition does not improve after a full course of therapy.




  • Advise patients to avoid exposure to intense natural or artificial sunlight during griseofulvin treatment since photosensitivity reactions can occur.104 125




  • Importance of discontinuing use and contacting clinician if signs or symptoms of sensitization occur (e.g., rash, urticaria).104 125




  • Importance of informing clinicians of existing or contemplated therapy, including prescription and OTC drugs, as well as any concomitant illnesses.




  • Importance of women informing clinicians if they are or plan to become pregnant or to breast-feed. (See Fetal/Neonatal Morbidity and Mortality under Cautions.)




  • Importance of informing patients of other important precautionary information. (See Cautions.)



Preparations


Excipients in commercially available drug preparations may have clinically important effects in some individuals; consult specific product labeling for details.


















Griseofulvin Microsize

Routes



Dosage Forms



Strengths



Brand Names



Manufacturer



Oral



Suspension



125 mg/5 mL



Grifulvin V (with alcohol 0.2% parabens and propylene glycol)



Ortho-Neutrogena



Tablets



500 mg



Grifulvin V (scored)



Ortho-Neutrogena


















Griseofulvin Ultramicrosize

Routes



Dosage Forms



Strengths



Brand Names



Manufacturer



Oral



Tablets, film-coated



125 mg



Gris-PEG (with methylparaben; scored)



Pedinol



250 mg



Gris-PEG (with methylparaben and povidone; scored)



Pedinol


Comparative Pricing


This pricing information is subject to change at the sole discretion of DS Pharmacy. This pricing information was updated 03/2011. Actual costs to patients will vary depending on the use of specific retail or mail-order locations and health insurance copays.


Grifulvin V 500MG Tablets (ORTHO DERM): 30/$139.98 or 90/$395.99


Griseofulvin Microsize 125MG/5ML Suspension (PATRIOT PHARMACEUTICALS LLC): 120/$42.99 or 360/$115.98


Gris-PEG 125MG Tablets (PEDINOL): 90/$196 or 270/$555.97



Disclaimer

This report on medications is for your information only, and is not considered individual patient advice. Because of the changing nature of drug information, please consult your physician or pharmacist about specific clinical use.


The American Society of Health-System Pharmacists, Inc. and Drugs.com represent that the information provided hereunder was formulated with a reasonable standard of care, and in conformity with professional standards in the field. The American Society of Health-System Pharmacists, Inc. and Drugs.com make no representations or warranties, express or implied, including, but not limited to, any implied warranty of merchantability and/or fitness for a particular purpose, with respect to such information and specifically disclaims all such warranties. Users are advised that decisions regarding drug therapy are complex medical decisions requiring the independent, informed decision of an appropriate health care professional, and the information is provided for informational purposes only. The entire monograph for a drug should be reviewed for a thorough understanding of the drug's actions, uses and side effects. The American Society of Health-System Pharmacists, Inc. and Drugs.com do not endorse or recommend the use of any drug. The information is not a substitute for medical care.

AHFS Drug Information. © Copyright, 1959-2011, Selected Revisions July 2006. American Society of Health-System Pharmacists, Inc., 7272 Wisconsin Avenue, Bethesda, Maryland 20814.




References



100. van Dijke CPH, Weber JCP. Interaction between oral contraceptives and griseofulvin. BMJ. 1984; 288:1125-6.



101. Rosa FW, Hernandez C, Carlo WA. Griseofulvin teratology, including two thoracopagus conjoined twins. Lancet. 1987; 1:171. [IDIS 225528] [PubMed 2880014]



102. Madhok R, Zoma A, Capell H. Fatal exacerbation of systemic lupus erythematosus after treatment with griseofulvin. BMJ. 1985; 291:249-50. [IDIS 203029] [PubMed 3926142]



103. Schering Corporation. Fulvicin P/G 165 and 330 (ultramicrosize griseofulvin) tablets prescribing information (dated 1996 Jun). In: Physicians’ desk reference. 53rd ed. Montvale, NJ: Medical Economics Company Inc; 1999:2844-5.



104. Pedinol Pharmacal. Gris-PEG (griseofulvin ultramicrosize) tablets prescribing information. In: Physician’s desk reference. 56th ed. Montvale, NJ: Medical Economics Company Inc; 2002:2661-2.



105. Catalano PM, Blank H. Griseofulvin–oral contraceptive interaction. Arch Dermatol. 1985; 121:1381. [IDIS 209312] [PubMed 4051524]



106. De Carli L, Larizza L. Griseofulvin. Mutat Res. 1988; 195:91-126. [PubMed 3277037]



107. Curry PT, Reed RN, Martino RM et al. Induction of sister-chromatid exchanges in vivo in mice by the mycotoxins sterigmatocystin and griseofulvin. Mutat Res. 1984; 137:111-5. [PubMed 6472322]



108. Taylor B, Duffill M. Toxic epidermal necrolysis from griseofulvin. J Am Acad Dermatol. 1988; 19:565-7. [PubMed 3170817]



109. Kojima T, Hasegawa T, Ishida H et al. Griseofulvin-induced photodermatitis—report of six cases. J Dermatol (Tokyo). 1988; 15:76-82.



110. Yang DJ, Rankin GO. Nephrotoxicity to antifungal agents. Adverse Drug React Acute Poisoning Rev. 1985; 4:37-47. [PubMed 3890481]



111. Metneki J, Czeizel A. Griseofulvin teratology. Lancet. 1987; 1:1042. [IDIS 229388] [PubMed 2883385]



112. Knudsen LB. No association between griseofulvin and conjoined twinning. Lancet. 1987; 2:1097. [PubMed 2890014]



113. Klein MF, Beall JR. Griseofulvin: a teratogenic study. Science. 1972; 175:1483-4. [PubMed 5013681]



114. Siracusa G, Whittingham DG, DeFelici M. The effect of microtubule- and microfilament-disrupting drugs on preimplantation mouse embryos. J Embryol Exp Morphol. 1980; 60:71-82. [PubMed 7198136]



115. Steelman RL, Kocsis JJ. Determination of the teratogenic and mutagenic potential of griseofulvin. Toxicol Appl Pharmacol. 1978; 45:343.



116. Slonitskaya NN. [Teratogenic effect of griseofulvin-forte on rat fetus.] Antibiotiki. 1969; 14:44-8.



117. Rosa FW. Twins, conjoined, teratogenicity. In: Buyse ML, ed. Birth defects encyclopedia. Birth Defects Information Service: Dover, MA. (in press)



118. Rosa FW. (Food and Drug Administration, Rockville, MD): Personal communication; 1989 Jan 13.



119. Day TW, Mendoza F. Pharmacologic management of Raynaud’s phenomenon. South Med J. 1984; 77:1160-4. [IDIS 191056] [PubMed 6385288]



120. Lecky BRF. Griseofulvin-induced neuropathy. Lancet. 1990; 335:230-1.



121. Mion G, Verdon R, Le Gulluche Y et al. Fatal toxic epidermal necrolysis after griseofulvin. Lancet. 1989; 2:1331. [IDIS 261340] [PubMed 2574272]



122. Ayerst. Grisactin (griseofulvin microsize) prescribing information. New York, NY; 1990 Jun 15.



123. Schering. Fulvicin P/G (ultramicrosize griseofulvin) tablets prescribing information (dated 1996 Feb). In: Physicians’ desk reference. 53rd ed. Montvale, NJ: Medical Economics Company Inc; 1999:2843-4.



124. Committee on Infectious Diseases, American Academy of Pediatrics. 2000 Red book: report of the Committee on Infectious Diseases. 25th ed. Elk Grove Village, IL: American Academy of Pediatrics; 2000:569-74.



125. Ortho Dermatological. Grifulvin V (griseofulvin) tablets microsize and oral suspension microsize prescribing information (dated 1997 Jan). In: Physicians’ desk reference. 56th ed. Montvale, NJ: Medical Economics Company Inc; 2002:2518-9.



126. Rasmussen BB, Jeppesen U, Gaist D et al. Griseofulvin and fluvoxamine interactions with the metabolism of theophylline. Ther Drug Monit. 1997; 19:56-62. [IDIS 381144] [PubMed 9029748]



127. Phillips KR, Wideman SD, Cochran EB et al. Griseofulvin significantly decreases serum salicylate concentrations. Pediatr Infect Dis J. 1993; 12:350-2. [PubMed 8483633]



128. Abu-Romeh SH, Rashed A. Ciclosporin A and griseofulvin: another drug interactions. Nephron. 1991; 58:237. [PubMed 1830935]



129. Cote J. Interaction of griseofulvin and oral contraceptives. J Am Acad Dermatol. 1990; 22:124-5. [PubMed 2298948]



130. Gupta AK, Einarson TR, Summerbell RC et al. An overview of topical antifungal therapy in dermatomycoses: a North American perspective. Drugs. 1998; 55:645-74. [PubMed 9585862]



131. Piérard GE, Arrese JE, Piérard-Franchimont C. Treatment and prophylaxis of tinea infections. Drugs. 1996; 52:209-24. [PubMed 8841739]



132. Lesher JL. Recent developments in antifungal therapy. Dermatol Clin. 1996; 14:163-9. [PubMed 8821170]



133. Hay RJ. Dermatophytosis and other superficial mycoses. In: Mandel GL, Douglas RG Jr, Bennett JE, eds. Principles and practices of infectious disease. 4th ed. New York: Churchill Livingston; 1995: 2375-86.



134. Drake LA, Dincehart SM, Farmer ER et al. Guidelines of care for superficial mycotic infections of the skin: tinea corporis, tinea cruris, tinea faciei, tinea manuum, and tinea pedis. J Am Acad Dermatol. 1996; 34:282-6. [IDIS 363962] [PubMed 8642094]



135. Elewski B. Tinea capitis. Dermatol Clin. 1996; 14:23-31. [PubMed 8821154]



136. Crissey JT. Common dermatophyte infections: a simple diagnostic test and current management. Postgrad Med. 1998; 103:191-205. [IDIS 401902] [PubMed 9479316]



137. Drake LA, Dincehart SM, Farmer ER et al. Guidelines of care for superficial mycotic infections of the skin: tinea capitis and tinea barbae. J Am Acad Dermatol. 1996; 34:290-4. [IDIS 363964] [PubMed 8642096]



138. Abdel-Rahman SM, Nahata MC, Powell DA. Response to initial griseofulvin therapy in pediatric patients with tinea capitis. Ann Pharmacother. 1997; 31:406-10. [IDIS 382641] [PubMed 9100999]



139. Rademaker M, Havill S. Griseofulvin and terbinafine in the treatment of tinea capitis in children. N Z Med J. 1998; 111:55-7. [IDIS 402970] [PubMed 9539918]



140. Howard RM, Frieden IJ. Dermatophyte infections in children. Adv Pediatr Infect Dis. 1999; 14:73-107. [PubMed 10079850]



141. Elewski BE. Treatment of tinea capitis: beyond griseofulvin. J Am Acad Dermatol. 1999; 40:S27-30.



142. Faergemann J, Mork NJ, Haglund A et al. A multicentre (double-blind) comparative study to assess the safety and efficacy of fluconazole and griseofulvin in the treatment of tinea corporis and tinea cruris. Br J Dermatol. 1997; 136:575-7. [IDIS 384787] [PubMed 9155961]



a. AHFS Drug Information 2004. McEvoy GK, ed. Griseofulvin. Bethesda, MD: American Society of Health-System Pharmacists; 2004:532-4.



b. Briggs GG, Freeman RK, Yaffe SJ. Drugs in pregnancy and lactation. 6th ed. Philadelphia; PA: Lippincott Wiliams & Wilkins; 2002:.



More Griseofulvin resources


  • Griseofulvin Side Effects (in more detail)
  • Griseofulvin Dosage
  • Griseofulvin Use in Pregnancy & Breastfeeding
  • Drug Images
  • Griseofulvin Drug Interactions
  • Griseofulvin Support Group
  • 5 Reviews for Griseofulvin - Add your own review/rating


  • Griseofulvin Prescribing Information (FDA)

  • Griseofulvin Professional Patient Advice (Wolters Kluwer)

  • Griseofulvin Microsize Oral Suspension MedFacts Consumer Leaflet (Wolters Kluwer)

  • griseofulvin Concise Consumer Information (Cerner Multum)

  • griseofulvin Advanced Consumer (Micromedex) - Includes Dosage Information

  • Gris-PEG Prescribing Information (FDA)

  • Gris-PEG Ultramicrosize Tablets MedFacts Consumer Leaflet (Wolters Kluwer)

  • Grisactin 250 Concise Consumer Information (Cerner Multum)



Compare Griseofulvin with other medications


  • Dermatophytosis
  • Onychomycosis, Fingernail
  • Onychomycosis, Toenail
  • Tinea Barbae
  • Tinea Capitis
  • Tinea Corporis
  • Tinea Cruris
  • Tinea Pedis

Wednesday, August 1, 2012

Permapen Isoject



penicillin G benzathine

Dosage Form: Injectable Suspension 1,200,000 units

STORE BETWEEN 2°–8°C (36°–46°F)


SHAKE WELL BEFORE USING



Permapen Isoject Description


Permapen® (Penicillin G Benzathine) Injectable Suspension, a sterile antibacterial agent, is a repository penicillin compound which provides blood levels for long periods following its intramuscular injection. This property is the result of its extremely low solubility in water. Each milliliter contains 600,000 units of penicillin G benzathine; 0.006 grams sodium citrate; 0.003 grams polyvinylpyrrolidone; 0.010 grams lecithin, and 0.003 grams sodium carboxymethylcellulose in an aqueous suspension. Permapen also contains methylparaben 0.09% and propylparaben 0.01% as preservatives.


Chemically, Permapen is 3,3-dimethyl-7-oxo-6-(2-phenylacetamido)-4 thia-l azabicyclo [3.2.0] heptane-2-carboxylic acid compound with N,N'-dibenzylethylenediamine (2:1) tetrahydrate. It is prepared by the reaction of dibenzyl-tetrahydrate-ethylenediamine with 2 molecules of penicillin G.


It has a molecular weight of 981.19 and the following chemical structure:



Formula


C16H20N2•2C16Hl8N2O4S•4H2O


Penicillin G benzathine occurs as a white crystalline powder and is very slightly soluble in water.


The pH of the injectable suspension is between 5.0–7.5.



Permapen Isoject - Clinical Pharmacology


Intramuscular penicillin G benzathine is absorbed very slowly into the blood stream from the intramuscular site and converted by hydrolysis to penicillin G. This combination of hydrolysis and slow absorption results in blood serum levels much lower than those of other parenteral penicillins.


Approximately 60% of penicillin G is bound to serum protein. The drug is distributed throughout the body tissues in widely varying amounts. Highest levels are found in the kidneys with lesser amounts in the liver, skin, and intestines. Penicillin G penetrates into all other tissues and the spinal fluid to a lesser degree. With normal kidney function the drug is excreted rapidly by tubular excretion. A small amount is secreted into the bile. In neonates and young infants, and in individuals with impaired kidney function, excretion is considerably delayed.



Microbiology


Penicillin G exerts a bactericidal action against penicillin-susceptible microorganisms during the stage of active multiplication. It acts through the inhibition of biosynthesis of cell wall mucopeptide. It is not active against the penicillinase-producing bacteria, which includes many strains of staphylococci.


While in vitro studies have demonstrated the susceptibility of most strains of the following organisms, clinical efficacy for infections other than those included in the INDICATIONS AND USAGE section has not been documented. Penicillin G exerts high in vitro activity against staphylococci (except penicillinase-producing strains), streptococci (groups A, C, G, H, L, and M), and pneumococci. Other organisms sensitive to penicillin G are: Corynebacterium diphtheriae, Bacillus anthracis, Clostridia, Actinomyces bovis, Streptobacillus moniliformis, Listeria monocytogenes, and Leptospira. Treponema pallidum is extremely sensitive to the bactericidal action of penicillin G.


Penicillin acts synergistically with gentamicin or tobramycin against many strains of enterococci.



Indications and Usage for Permapen Isoject


Intramuscular penicillin G benzathine is indicated in the treatment of infections in both children and adults due to penicillin G-susceptible microorganisms that are susceptible to the low and very prolonged serum levels common to this particular dosage form in the indications listed below. Therapy should be guided by clinical response.


Note: When high sustained serum levels are required, injectable penicillin G either IM or IV should be used.


The following infections will usually respond to adequate dosages of intramuscular penicillin G benzathine:


Upper Respiratory Tract (pharyngitis): streptococci (group A – without bacteremia).


Venereal Infections: Syphilis


Yaws, bejel, and pinta.



Medical Conditions in Which Penicillin G Benzathine Therapy is Indicated As Prophylaxis


Rheumatic fever and/or chorea: Prophylaxis with penicillin G benzathine has proven effective in preventing recurrence of these conditions. It has also been used as follow-up prophylactic therapy for rheumatic heart disease and acute glomerulonephritis.



Contraindications


A history of a previous hypersensitivity reaction to any penicillin is a contraindication.



Warnings


Serious and occasionally fatal hypersensitivity (anaphylactoid) reactions have been reported in patients on penicillin therapy. These reactions are more likely to occur in individuals with a history of penicillin hypersensitivity and/or a history of sensitivity to multiple allergens. There have been reports of individuals with a history of penicillin hypersensitivity who have experienced severe reactions when treated with cephalosporins. Before initiating therapy with any penicillin, careful inquiry should be made concerning previous hypersensitivity reactions to penicillin, cephalosporins, and other allergens. If an allergic reaction occurs, the drug should be discontinued and the appropriate therapy instituted. Serious anaphylactoid reactions require immediate emergency treatment with epinephrine. Oxygen, intravenous steroids, and airway management–including intubation, should be administered as indicated.



Precautions



General


Penicillin should be used with caution in individuals with histories of significant allergies and/or asthma.


Intramuscular therapy: Care should be taken to avoid intravenous administration, accidental intraarterial administration, or injection into or near major peripheral nerves or blood vessels, since many injections may produce neurovascular damage.


As with all intramuscular preparations, penicillin G benzathine should be injected well within the body of a relatively large muscle.


ADULTS: The preferred site is the upper outer quadrant of the buttock (i.e., gluteus maximus), or the mid-lateral thigh.


CHILDREN: It is recommended that intramuscular injections be given preferably in the mid-lateral muscles of the thigh. In infants and small children the periphery of the upper outer quadrant of the gluteal region should be used only when necessary, such as in burn patients, in order to minimize the possibility of damage to the sciatic nerve.


The deltoid area should be used only if well developed such as in certain adults and older children, and then only with caution to avoid radial nerve injury. Intramuscular injections should not be made into the lower and mid-third of the upper arm. As with all intramuscular injections, aspiration is necessary to help avoid inadvertent injection into a blood vessel.


Irritation at the site of injection may occur. In addition, subcutaneous and fat–layer injections should be avoided since they may cause pain and induration. If these occur, they may be relieved by the application of an ice pack.


In streptococcal infections, therapy must be sufficient to eliminate the organism (10 days minimum), otherwise the sequelae of streptococcal disease may occur. Cultures should be taken following completion of treatment to determine whether streptococci have been eradicated.


The use of antibiotics may result in overgrowth of nonsusceptible organisms. Constant observation of the patient is essential. If new infections due to bacteria or fungi appear during therapy, the drug should be discontinued and appropriate measures taken. Whenever allergic reactions occur, penicillin should be withdrawn unless, in the opinion of the physician, the condition being treated is life threatening and amenable only to penicillin therapy.



Laboratory Tests


In prolonged therapy with penicillin, periodic evaluation of the renal, hepatic and hematopoietic systems for organ dysfunction is recommended. This is particularly important in prematures, neonates and other infants, and when high doses are used.


When treating gonococcal infections in which primary and secondary syphilis are suspected, proper diagnostic procedures, including dark field examinations, should be done before receiving penicillin and monthly serological tests made for at least four months. All cases of penicillin-treated syphilis should receive clinical and serological examinations every six months for two to three years.


In streptococcal infections, cultures should be taken following completion of treatment to determine whether streptococci have been eradicated.



Drug Interactions


Concurrent administration of bacteriostatic antibiotics (e.g., erythromycin, tetracycline) may diminish the bactericidal effects of penicillins by slowing the rate of bacterial growth. Bactericidal agents work most effectively against the immature cell wall of rapidly proliferating microorganisms. This has been demonstrated in vitro; however, the clinical significance of this interaction is not well documented. There are few clinical situations in which the concurrent use of "static" and "cidal" antibiotics are indicated. However, in selected circumstances in which such therapy is appropriate, using adequate doses of antibacterial agents and beginning penicillin therapy first, should minimize the potential for interaction.


Penicillin blood levels may be prolonged by concurrent administration of probenecid which blocks the renal tubular secretion of penicillins.


Displacement of penicillins from plasma protein binding sites will elevate the level of free penicillin in the serum.



Carcinogenesis, Mutagenesis, Impairment of Fertility


No information or long term studies are available on the carcinogenesis, mutagenesis, or impairment of fertility with the use of penicillins.



Pregnancy


Pregnancy Category B – Teratogenic Effects

Reproduction studies in the mouse, rat and rabbit have revealed no evidence of impaired fertility or harm to the fetus due to penicillin G. Human experience with the penicillins during pregnancy has not shown any positive evidence of adverse effects on the fetus. There are, however, no adequate and well controlled studies in pregnant women showing conclusively that harmful effects of these drugs on the fetus can be excluded. Because animal reproduction studies are not always predictive of human response, this drug should be used during pregnancy only if clearly needed.



Nursing Mothers


Pencillin G benzathine has been reported in milk. Caution should be exercised when penicillin G benzathine is administered to a nursing woman.



Pediatric Use


Pencillins are excreted largely unchanged by the kidney. Because of incompletely developed renal function in infants, the rate of elimination will be slow. Use caution in administering to newborns and evaluate organ system function frequently.



Adverse Reactions


The hypersensitivity reactions reported are skin eruptions (maculopapular to exfoliative dermatitis), urticaria and other serum sickness reactions, laryngeal edema and anaphylaxis. Fever and eosinophilia may frequently be the only reaction observed. Hemolytic anemia, leucopenia, thrombocytopenia, neuropathy, and nephropathy are infrequent reactions and usually associated with high doses of parenteral penicillin.



Overdosage


Penicillin in overdosage has the potential to cause neuromuscular hyperirritability. In case of overdosage discontinue medication, treat symptomatically, and institute supportive measures as required.


Penicillin G is hemodialyzable.



Permapen Isoject Dosage and Administration


Administer by deep IM injection in the upper outer quadrant of the buttock. In infants and small children, the mid-lateral aspect of the thigh may be preferable. When doses are repeated, vary the injection site (see PRECAUTIONS).



Pediatric Dosage Schedule


In children under 12 years of age, dosage should be adjusted in accordance with the age and weight of the child and the severity of the infection. Under 2 years of age, the dose may be divided between the two buttocks if necessary.



Streptococcal Infections (group A) pharyngitis


A single injection of 900,000 units for older children; l,200,000 units for adults.



Venereal Infections


Syphilis

Primary, secondary, and latent: 2.4 million units (1 dose).


Late Syphilis (tertiary and neurosyphilis)

3 million units at 7 day intervals for a total of 6–9 million units.


Congenital Syphilis (asymptomatic with normal cerebrospinal fluid)

Under 2 years of age–50,000 units/kg body weight in a single dose; ages 2–12 years–adjust dosage based on adult dosage schedule.



Yaws, Bejel, and Pinta


1.2 million units (1 injection).



Prophylaxis


For rheumatic fever and glomerulonephritis.


Following an acute attack, penicillin G benzathine (parenteral) may be given in doses of 1,200,000 units once a month or 600,000 units every 2 weeks.


Parenteral drug products should be visually inspected for particulate matter and discoloration prior to administration, whenever solution and container permit.



How is Permapen Isoject Supplied


Permapen (Penicillin G Benzathine) Injectable Suspension is supplied in an ISOJECT syringe: 1,200,000 units in packages of 10 (NDC 0049-0210-35). ISOJECT is a pre-filled disposable syringe unit with a 20-gauge, 1¼ inch needle. Each 2 mL contains 1,200,000 units penicillin G benzathine; 0.0l2 g sodium citrate; 0.006 g polyvinylpyrrolidone; 0.020 g lecithin, and 0.006 g sodium carboxymethylcellulose. Preservatives: methylparaben 0.09%, propylparaben 0.01%.


The product should be stored between 2°–8°C (36°–46°F). Keep from freezing.



Rx only



23-1173-00-3








PERMAPEN 
penicillin g benzathine  injection, suspension










Product Information
Product TypeHUMAN PRESCRIPTION DRUGNDC Product Code (Source)0049-0210
Route of AdministrationINTRAMUSCULARDEA Schedule    


























INGREDIENTS
Name (Active Moiety)TypeStrength
penicillin G benzathine (penicillin)Active600000 UNITS  In 1 MILLILITER
sodium citrateInactive 
polyvinylpyrrolidoneInactive 
lecithinInactive 
sodium carboxymethylcelluloseInactive 
methylparabenInactive 
propylparabenInactive 


















Product Characteristics
Color    Score    
ShapeSize
FlavorImprint Code
Contains      














Packaging
#NDCPackage DescriptionMultilevel Packaging
10049-0210-3510 SYRINGE In 1 PACKAGEcontains a SYRINGE
12 mL (MILLILITER) In 1 SYRINGEThis package is contained within the PACKAGE (0049-0210-35)

Revised: 04/2006Roerig

More Permapen Isoject resources


  • Permapen Isoject Side Effects (in more detail)
  • Permapen Isoject Use in Pregnancy & Breastfeeding
  • Permapen Isoject Drug Interactions
  • Permapen Isoject Support Group
  • 0 Reviews for Permapen Isoject - Add your own review/rating


Compare Permapen Isoject with other medications


  • Actinomycosis
  • Anthrax
  • Anthrax Prophylaxis
  • Aspiration Pneumonia
  • Bacterial Infection
  • Clostridial Infection
  • Congenital Syphilis
  • Cutaneous Bacillus anthracis
  • Deep Neck Infection
  • Diphtheria
  • Endocarditis
  • Fusospirochetosis, Trench Mouth
  • Joint Infection
  • Leptospirosis
  • Lyme Disease, Arthritis
  • Lyme Disease, Carditis
  • Lyme Disease, Erythema Chronicum Migrans
  • Lyme Disease, Neurologic
  • Meningitis
  • Meningitis, Meningococcal
  • Meningitis, Pneumococcal
  • Neurosyphilis
  • Otitis Media
  • Pneumonia
  • Prevention of Perinatal Group B Streptococcal Disease
  • Rat-bite Fever
  • Rheumatic Fever Prophylaxis
  • Skin Infection
  • Strep Throat
  • Syphilis, Early
  • Syphilis, Latent
  • Tertiary Syphilis
  • Tonsillitis/Pharyngitis
  • Upper Respiratory Tract Infection

Monurol


Generic Name: Fosfomycin Tromethamine
Class: Urinary Anti-infectives
VA Class: AM900
Chemical Name: (1R,2S)-(1,2-Epoxypropyl)phosphonic acid, compound with 2-amino-2-(hydroxymethyl)-1,3-propanediol (1:1)
Molecular Formula: C3H7O4P•C4H11N O13
CAS Number: 78964-85-9

Introduction

Antibacterial; phosphonic acid derivative.1


Uses for Monurol


Urinary Tract Infections (UTIs)


Treatment of uncomplicated UTIs (acute cystitis) in women when UTIs are caused by susceptible Escherichia coli or Enterococcus faecalis (formerly Streptococcus faecalis).1 2 3 4 5


Do not use for treatment of pyelonephritis or perinephric abscesses.1


If persistence or reappearance of bacteriuria occurs after fosfomycin treatment, do not repeat treatment; select another anti-infective.1


Monurol Dosage and Administration


Administration


Oral Administration


Administer orally.1


May be taken with or without food.1


Prepare oral solution by adding contents of a single-dose packet (sachet) containing 3 g of the drug to 90–120 mL of water;1 do not use hot water.1 Ingest immediately after preparation.1


Do not administer as dry granules.1


Dosage


Available as fosfomycin tromethamine; dosage expressed in terms of fosfomycin.1


Adults


Urinary Tract Infections (UTIs)

Uncomplicated UTIs

Oral

3 g as a single dose.1


Special Populations


Hepatic Impairment


No specific dosage recommendations at this time.1


Renal Impairment


Dosage adjustment not necessary.6 (See Pharmacokinetics.)


Geriatric Patients


Dosage adjustment not necessary.1 (See Geriatric Use under Cautions.)


Cautions for Monurol


Contraindications



  • Known hypersensitivity to fosfomycin or any ingredient in the formulation.1



Warnings/Precautions


General Precautions


Retreatment

Do not use more than a single dose to treat a single episode of acute cystitis; repeated daily doses do not enhance efficacy and increase incidence of adverse events.1


Selection and Use of Anti-infectives

Obtain urine specimens for culture and in vitro susceptibility testing before and after completion of therapy.1


To reduce development of drug-resistant bacteria and maintain effectiveness of fosfomycin and other antibacterials, use only for treatment of infections proven or strongly suspected to be caused by susceptible bacteria.1


Specific Populations


Pregnancy

Category B.1


Lactation

Not known whether distributed into breast milk.1


Potential for serious adverse reactions in nursing infants; discontinue nursing or do not administer drug.1


Pediatric Use

Safety and efficacy not established in children ≤12 years of age.1 Manufacturer make no specific dosage recommendations for pediatric patients.1


Geriatric Use

Insufficient experience in those ≥65 years of age to determine whether they respond differently than younger adults.1 No evidence of substantial differences in safety and efficacy relative to younger adults.1


Although dosage adjustment not usually necessary, select dosage with caution because of age-related decreases in hepatic, renal, and/or cardiac function and potential for concomitant disease and drug therapy.1


Common Adverse Effects


Diarrhea.1


Interactions for Monurol


Drugs that Increase GI Motility


May decrease serum and urine concentrations of fosfomycin.1


Specific Drugs












Drug



Interaction



Comments



Cimetidine



Pharmacokinetics of fosfomycin not affected1



Metoclopramide



Decreased serum concentrations and decreased urinary excretion of fosfomycin1


Monurol Pharmacokinetics


Absorption


Bioavailability


Fosfomycin tromethamine is rapidly absorbed following oral administration and converted to the free acid, fosfomycin.1 Peak serum concentrations attained within 2–4 hours.1


Food

Food decreases oral bioavailability;1 bioavailability is 37% and 30% under fasting and fed conditions, respectively.1


Cumulative amount of drug excreted in urine is similar whether the drug is given with or without food.1


Distribution


Extent


Distributed to kidneys, bladder wall, prostate, and seminal vesicles.1


Crosses the placenta.1


Plasma Protein Binding


Not bound to plasma proteins.1


Elimination


Elimination Route


Eliminated unchanged in urine (38% of an oral dose) and feces (18% of an oral dose).1


Peak urine concentrations achieved within 2–4 hours or 6–8 hours under fasting or fed conditions, respectively; cumulative amount excreted in urine is similar.1


Half-life


5.7 hours.1


Special Populations


Geriatric adults: Pharmacokinetics similar to that reported in younger adults.1


Renal impairment: Decreased elimination and prolonged half-life.1 Half-life ranges up to 50 hours in patients with renal impairment.1


Stability


Storage


Oral


Powder

25°C (may be exposed to 15–30°C).1


Actions and SpectrumActions



  • Phosphonic acid derivative,5 synthetic antibacterial agent.1




  • Bactericidal in urine when administered in therapeutic doses.1 5




  • Antibacterial activity results from interference with bacterial cell wall synthesis by inhibiting the enzyme enolpyruvyl transferase that catalyzes the formation of uridine diphosphate-N-acetylmuramic acid in the first step of bacterial cell wall synthesis.1 4 5 Also reduces adherence of bacteria to uroepithelial cells.1 5




  • Active in vitro against a broad spectrum of gram-negative and gram-positive bacteria, including those commonly associated with uncomplicated UTIs.1 4 5 Active in vitro and in vivo against Escherichia coli and Enterococcus faecalis.1




  • Cross-resistance generally does not occur between fosfomycin and other antibacterial agents (e.g., β-lactams, aminoglycosides).1



Advice to Patients



  • Importance of diluting granules with water (not hot water) just prior to administration.1




  • Advise patient that fosfomycin may be taken with or without food.1




  • Importance of contacting clinician if UTI symptoms do not improve within 2–3 days after treatment.1




  • Importance of informing clinicians of existing or contemplated concomitant therapy, including prescription and OTC drugs.1




  • Importance of women informing clinicians if they are or plan to become pregnant or plan to breast-feed.1




  • Importance of informing patients of other important precautionary information.1 (See Cautions.)



Preparations


Excipients in commercially available drug preparations may have clinically important effects in some individuals; consult specific product labeling for details.













Fosfomycin Tromethamine

Routes



Dosage Forms



Strengths



Brand Names



Manufacturer



Oral



For solution



3 g (of fosfomycin) per packet



Monurol Sachet



Forest


Comparative Pricing


This pricing information is subject to change at the sole discretion of DS Pharmacy. This pricing information was updated 03/2011. Actual costs to patients will vary depending on the use of specific retail or mail-order locations and health insurance copays.


Monurol 3GM Packet (FOREST): 1/$50.86 or 3/$139.89



Disclaimer

This report on medications is for your information only, and is not considered individual patient advice. Because of the changing nature of drug information, please consult your physician or pharmacist about specific clinical use.


The American Society of Health-System Pharmacists, Inc. and Drugs.com represent that the information provided hereunder was formulated with a reasonable standard of care, and in conformity with professional standards in the field. The American Society of Health-System Pharmacists, Inc. and Drugs.com make no representations or warranties, express or implied, including, but not limited to, any implied warranty of merchantability and/or fitness for a particular purpose, with respect to such information and specifically disclaims all such warranties. Users are advised that decisions regarding drug therapy are complex medical decisions requiring the independent, informed decision of an appropriate health care professional, and the information is provided for informational purposes only. The entire monograph for a drug should be reviewed for a thorough understanding of the drug's actions, uses and side effects. The American Society of Health-System Pharmacists, Inc. and Drugs.com do not endorse or recommend the use of any drug. The information is not a substitute for medical care.

AHFS Drug Information. © Copyright, 1959-2011, Selected Revisions January 2008. American Society of Health-System Pharmacists, Inc., 7272 Wisconsin Avenue, Bethesda, Maryland 20814.




References



1. Forest Pharmaceuticals, Inc. Monurol (fosfomycin tromethamine) powder prescribing information. St. Louis, MO; 2004 May.



2. Elhanan G, Tabenkin H, Yahalom R et al. Single-dose fosfomycin trometamol versus 5-day cephalexin regimen for treatment of uncomplicated lower urinary tract infections in women. Antimicrob Agents Chemother. 1994; 38:2612-4. [IDIS 337800] [PubMed 7872756]



3. Selvaggi FP, Ditonno P, Traficante A et al. Fosfomycin trometamol (Monuril) versus norfloxacin in single dose for adult female uncomplicated UTIs: multicenter randomized, double-blind study. Chemotherapy. 1990; 36(Suppl 1):31-3. [IDIS 297402] [PubMed 2085986]



4. Reeves DS. Fosfomycin trometamol. J Antimicrob Chemother. 1994; 34:853-8. [IDIS 343321] [PubMed 7730229]



5. Patel SS, Balfour JA, Bryson HM. Fosfomycin tromethamine: a review of its antibacterial activity, pharmacokinetic properties and therapeutic efficacy as a single-dose oral treatment for acute uncomplicated lower urinary tract infections. Drugs. 1997; 53:637-56. [PubMed 9098664]



6. Forest Pharmaceuticals, Inc, St. Louis, MO: Personal communication.



More Monurol resources


  • Monurol Side Effects (in more detail)
  • Monurol Use in Pregnancy & Breastfeeding
  • Monurol Drug Interactions
  • Monurol Support Group
  • 1 Review for Monurol - Add your own review/rating


  • Monurol Prescribing Information (FDA)

  • Monurol Concise Consumer Information (Cerner Multum)

  • Monurol Advanced Consumer (Micromedex) - Includes Dosage Information

  • Monurol MedFacts Consumer Leaflet (Wolters Kluwer)



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  • Bladder Infection
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Tuesday, July 31, 2012

Loprox Cream





Dosage Form: cream

FOR DERMATOLOGIC USE ONLY.

NOT FOR USE IN EYES.


Rx Only



Loprox Cream Description


Loprox® Cream (ciclopirox) 0.77% is for topical use.


Each gram of LOPROX® Cream contains 7.70 mg of ciclopirox (as ciclopirox olamine) in a water miscible vanishing cream base consisting of Purified Water USP, Cetyl Alcohol NF, Light Mineral Oil NF, Octyldodecanol NF, Stearyl Alcohol NF, Polysorbate 60 NF, Myristyl Alcohol, Sorbitan Monostearate NF, Lactic Acid USP, and Benzyl Alcohol NF (1%) as preservative.


LOPROX® Cream contains a synthetic, broad-spectrum, antifungal agent ciclopirox (as ciclopirox olamine). The chemical name is 6-cyclohexyl-1-hydroxy-4-methyl-2(1H)-pyridone, 2-aminoethanol salt.


The CAS Registry Number is 41621-49-2. The chemical structure is:




Loprox Cream - Clinical Pharmacology


Ciclopirox is a broad-spectrum, antifungal agent that inhibits the growth of pathogenic dermatophytes, yeasts, and Malassezia furfur. Ciclopirox exhibits fungicidal activity in vitro against isolates of Trichophyton rubrum, Trichophyton mentagrophytes, Epidermophyton floccosum, Microsporum canis, and Candida albicans.


Pharmacokinetic studies in men with tagged ciclopirox solution in polyethylene glycol 400 showed an average of 1.3% absorption of the dose when it was applied topically to 750 cm2 on the back followed by occlusion for 6 hours. The biological half-life was 1.7 hours and excretion occurred via the kidney. Two days after application only 0.01% of the dose applied could be found in the urine. Fecal excretion was negligible.


Penetration studies in human cadaverous skin from the back, with LOPROX® Cream with tagged ciclopirox showed the presence of 0.8 to 1.6% of the dose in the stratum corneum 1.5 to 6 hours after application. The levels in the dermis were still 10 to 15 times above the minimum inhibitory concentrations.


Autoradiographic studies with human cadaverous skin showed that ciclopirox penetrates into the hair and through the epidermis and hair follicles into the sebaceous glands and dermis, while a portion of the drug remains in the stratum corneum.


Draize Human Sensitization Assay, 21-Day Cumulative Irritancy study, Phototoxicity study, and Photo-Draize study conducted in a total of 142 healthy male subjects showed no contact sensitization of the delayed hypersensitivity type, no irritation, no phototoxicity, and no photo-contact sensitization due to LOPROX® Cream.



Indications and Usage for Loprox Cream


LOPROX® Cream is indicated for the topical treatment of the following dermal infections: tinea pedis, tinea cruris, and tinea corporis due to Trichophyton rubrum, Trichophyton mentagrophytes, Epidermophyton floccosum, and Microsporum canis; candidiasis (moniliasis) due to Candida albicans; and tinea (pityriasis) versicolor due to Malassezia furfur.



Contraindications


LOPROX® Cream is contraindicated in individuals who have shown hypersensitivity to any of its components.



Warnings


LOPROX® Cream is not for ophthalmic use.

Keep out of reach of children.



Precautions


If a reaction suggesting sensitivity or chemical irritation should occur with the use of LOPROX® Cream, treatment should be discontinued and appropriate therapy instituted.



Information for Patients


The patient should be told to:


  1. Use the medication for the full treatment time even though symptoms may have improved and notify the physician if there is no improvement after four weeks.

  2. Inform the physician if the area of application shows signs of increased irritation (redness, itching, burning, blistering, swelling, or oozing) indicative of possible sensitization.

  3. Avoid the use of occlusive wrappings or dressings.


Carcinogenesis, Mutagenesis, Impairment of Fertility


A carcinogenicity study in female mice dosed cutaneously twice per week for 50 weeks followed by a 6-month drug-free observation period prior to necropsy revealed no evidence of tumors at the application site.


The following in vitro and in vivo genotoxicity tests have been conducted with ciclopirox olamine: studies to evaluate gene mutation in the Ames Salmonella/Mammalian Microsome Assay (negative) and Yeast Saccharomyces Cerevisiae Assay (negative) and studies to evaluate chromosome aberrations in vivo in the Mouse Dominant Lethal Assay and in the Mouse Micronucleus Assay at 500 mg/kg (negative).


The following battery of in vitro genotoxicity tests were conducted with ciclopirox: a chromosome aberration assay in V79 Chinese Hamster Cells, with and without metabolic activation (positive); a gene mutation assay in the HGPRT - test with V79 Chinese Hamster Cells (negative); and a primary DNA damage assay (i.e., unscheduled DNA Synthesis Assay in A549 Human Cells (negative)). An in vitro Cell Transformation Assay in BALB/C3T3 Cells was negative for cell transformation. In an in vivo Chinese Hamster Bone Marrow Cytogenetic Assay, ciclopirox was negative for chromosome aberrations at 5,000 mg/kg.



Pregnancy Category B


Reproduction studies have been performed in the mouse, rat, rabbit, and monkey (via various routes of administration) at doses 10 times or more the topical human dose and have revealed no significant evidence of impaired fertility or harm to the fetus due to ciclopirox. There are, however, no adequate or well-controlled studies in pregnant woman. Because animal reproduction studies are not always predictive of human response, this drug should be used during pregnancy only if clearly needed.



Nursing Mothers


It is not known whether this drug is excreted in human milk. Because many drugs are excreted in human milk, caution should be exercised when LOPROX® Cream is administered to a nursing woman.



Pediatric Use


Safety and effectiveness in pediatric patients below the age of 10 years have not been established.



Adverse Reactions


In all controlled clinical studies with 514 patients using LOPROX® Cream and in 296 patients using the vehicle cream, the incidence of adverse reactions was low. This included pruritus at the site of application in one patient and worsening of the clinical signs and symptoms in another patient using ciclopirox cream and burning in one patient and worsening of the clinical signs and symptoms in another patient using the vehicle cream.



Loprox Cream Dosage and Administration


Gently massage LOPROX® Cream into the affected and surrounding skin areas twice daily, in the morning and evening. Clinical improvement with relief of pruritus and other symptoms usually occurs within the first week of treatment. If a patient shows no clinical improvement after four weeks of treatment with LOPROX® Cream, the diagnosis should be redetermined. Patients with tinea versicolor usually exhibit clinical and mycological clearing after two weeks of treatment.



How is Loprox Cream Supplied


Loprox® Cream (ciclopirox) 0.77% is supplied in 15 gram (NDC 99207-015-15), 30 gram (NDC 99207-015-30), and 90 gram (NDC 99207-015-90) tubes.


Store at 15°– 30°C (59°– 86°F).



Manufactured for:

MEDICIS, The Dermatology Company®

Scottsdale, AZ 85258


Prescribing Information as of January 2005.


REG TM MEDICIS


IN – 5184/S

158199/2








LOPROX 
ciclopirox olamine  cream










Product Information
Product TypeHUMAN PRESCRIPTION DRUGNDC Product Code (Source)99207-015
Route of AdministrationTOPICALDEA Schedule    






































INGREDIENTS
Name (Active Moiety)TypeStrength
ciclopirox olamine (ciclopirox)Active7.7 MILLIGRAM  In 1 GRAM
WaterInactive 
Cetyl AlcoholInactive 
Light Mineral OilInactive 
OctyldodecanolInactive 
Stearyl AlcoholInactive 
Polysorbate 60Inactive 
Myristyl AlcoholInactive 
Sorbitan MonostearateInactive 
Lactic AcidInactive 
Benzyl Alcohol (1%)Inactive 


















Product Characteristics
Color    Score    
ShapeSize
FlavorImprint Code
Contains      


















Packaging
#NDCPackage DescriptionMultilevel Packaging
199207-015-1515 g (GRAM) In 1 TUBENone
299207-015-3030 g (GRAM) In 1 TUBENone
399207-015-9090 g (GRAM) In 1 TUBENone

Revised: 03/2007MEDICIS, The Dermatology Company

More Loprox Cream resources


  • Loprox Cream Side Effects (in more detail)
  • Loprox Cream Use in Pregnancy & Breastfeeding
  • Loprox Cream Support Group
  • 9 Reviews for Loprox - Add your own review/rating


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  • Cutaneous Candidiasis
  • Onychomycosis, Fingernail
  • Onychomycosis, Toenail
  • Seborrheic Dermatitis
  • Tinea Corporis
  • Tinea Cruris
  • Tinea Pedis
  • Tinea Versicolor

Monday, July 30, 2012

Topcare Ibuprofen Junior Strength Chewable




Generic Name: ibuprofen

Dosage Form: tablet, chewable
Topco Ibuprofen Tablets 100 mg Drug Facts

Active ingredient (in each tablet)


Ibuprofen 100 mg (NSAID)*


*nonsteroidal anti-inflammatory drug



Purpose


Pain reliever/fever reducer



Uses


temporarily:


  • reduces fever

  • relieves minor aches and pains due to the common cold, flu, sore throat, headaches and toothaches


Warnings


Allergy alert: Ibuprofen may cause a severe allergic reaction, especially in people allergic to aspirin. Symptoms may include:


  • hives

  • facial swelling

  • asthma (wheezing)

  • shock

  • skin reddening

  • rash

  • blisters

If an allergic reaction occurs, stop use and seek medical help right away.


Stomach bleeding warning: This product contains an NSAID, which may cause severe stomach bleeding. The chances are higher if your child:


  • has had stomach ulcers or bleeding problems

  • takes a blood thinning (anticoagulant) or steroid drug

  • takes other drugs containing prescription or nonprescription NSAIDs [aspirin, ibuprofen, naproxen, or others]

  • takes more or for a longer time than directed

Sore throat warning: Severe or persistent sore throat or sore throat accompanied by high fever, headache, nausea, and vomiting may be serious. Consult doctor promptly. Do not use more than 2 days or administer to children under 3 years of age unless directed by doctor.



Do not use


  • if the child has ever had an allergic reaction to any other pain reliever/fever reducer

  • right before or after heart surgery


Ask a doctor before use if


  • child has problems or serious side effects from taking pain relievers or fever reducers

  • stomach bleeding warning applies to your child

  • child has a history of stomach problems, such as heartburn

  • child has not been drinking fluids

  • child has lost a lot of fluid due to vomiting or diarrhea

  • child has high blood pressure, heart disease, liver cirrhosis, or kidney disease

  • child has asthma

  • child is taking a diuretic


Ask a doctor or pharmacist before use if the child is


  • under a doctor’s care for any serious condition

  • taking any other drug


When using this product


  • mouth or throat burning may occur; give with food or water

  • take with food or milk if stomach upset occurs

  • the risk of heart attack or stroke may increase if you use more than directed or for longer than directed


Stop use and ask a doctor if


  • child experiences any of the following signs of stomach bleeding:

  • feels faint

  • vomits blood

  • has bloody or black stools

  • has stomach pain that does not get better

  • the child does not get any relief within the first day (24 hours) of treatment

  • fever or pain gets worse or lasts more than 3 days

  • redness or swelling is present in the painful area

  • any new symptoms appear


Keep out of reach of children.


In case of overdose, get medical help or contact a Poison Control Center right away. (1-800-222-1222)



Directions


  • this product does not contain directions or complete warnings for adult use

  • do not give more than directed

  • do not give longer than 10 days, unless directed by a doctor (see Warnings)

  • find the right dose on chart below. If possible, use weight to dose; otherwise use age.

  • if needed, repeat dose every 6-8 hours

  • do not use more than 4 times a day
























Dosing Chart
Weight (lb)Age (yr)Tablets
under 24under 2ask a doctor
24-352-31
36-474-51 ½
48-596-82
60-719-102 ½
72-95113

Other information


  • phenylketonurics: contains phenylalanine 6 mg per tablet

  • do not use if printed seal under cap is broken or missing

  • store at 20-25°C (68-77°F)

  • see end panel for lot number and expiration date


Inactive ingredients


acesulfame potassium, aspartame, carnauba wax, croscarmellose sodium, FD&C yellow no. 6 aluminum lake, flavors, hypromellose, magnasweet 180, magnesium stearate, mannitol, prosweet, silicon dioxide, sodium lauryl sulfate, soybean oil, succinic acid, whey protein concentrate



Questions or comments?


1-888-423-0139



Principal Display Panel


See New Warnings Information


For Ages 2 to 11


Junior Strength


Ibuprofen Tablets 100 mg


Pain Reliever/Fever Reducer (NSAID)


Lasts Up to 8 Hours


Actual Size


Compare to Motrin® Junior Strength active ingredient


Ibuprofen Tablets 100 mg Carton










TOPCARE IBUPROFEN  JUNIOR STRENGTH
ibuprofen  tablet, chewable










Product Information
Product TypeHUMAN OTC DRUGNDC Product Code (Source)36800-461
Route of AdministrationORALDEA Schedule    








Active Ingredient/Active Moiety
Ingredient NameBasis of StrengthStrength
IBUPROFEN (IBUPROFEN)IBUPROFEN100 mg





Inactive Ingredients
Ingredient NameStrength
No Inactive Ingredients Found


















Product Characteristics
ColorORANGEScore2 pieces
ShapeROUNDSize13mm
FlavorORANGEImprint CodeL461
Contains      














Packaging
#NDCPackage DescriptionMultilevel Packaging
136800-461-621 BOTTLE In 1 CARTONcontains a BOTTLE
124 TABLET In 1 BOTTLEThis package is contained within the CARTON (36800-461-62)










Marketing Information
Marketing CategoryApplication Number or Monograph CitationMarketing Start DateMarketing End Date
ANDAANDA07635905/28/2004


Labeler - Topco Associates LLC (006935977)
Revised: 07/2009Topco Associates LLC




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