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Correct diagnosis of the lesions to be treated is essential. See the “Diagnosis” subsection of the INDICATIONS AND USAGE statement.
Condylox 0.5% Solution is intended for cutaneous use only. Avoid contact with the eye. If eye contact occurs , patients should immediately flush the eye with copious quantities of water and seek medical advice.
Data are not available on the safe and effective use of this product for treatment of warts occurring in the perianal area or on mucous membranes of the genital area (including the urethra, rectum and vagina). The recommended method of application, frequency of application, and duration of usage should not be exceeded (see DOSAGE AND ADMINISTRATION).
Information for Patients
The patient should be provided with a PATIENT INFORMATION leaflet when a Condylox prescription is filled.
Carcinogenesis, Mutagenesis, Impairment Of Fertility
Reports of lifetime carcinogenicity studies in mice are not available. Published animal studies, in general, have not shown the drug substance, podofilox, to be carcinogenic.1,2,3,4,5 There are published reports that, in mouse studies, crude podophyllin resin (containing podofilox) applied topically to the cervix produced changes resembling carcinoma in situ.6 These changes were reversible at five weeks after cessation of treatment. In one reported experiment, epidermal carcinoma of the vagina and cervix was found in 1 out of 18 mice after 120 applications of podophyllin7 (the drug was applied twice weekly over a 15-month period).
Podofilox was not mutagenic in the Ames plate reverse mutation assay at concentrations up to 5 mg/plate, with and without metabolic activation. No cell transformation related to potential oncogenicity was observed in BALB/3T3 cells after exposure to podofilox at concentrations up to 0.008 μg/mL without metabolic activation and 12 μg/mL podofilox with metabolic activation. Results from the mouse micronucleus in vivo assay using podofilox 0.5% solution in concentrations up to 25 mg/kg, indicate that podofilox should be considered a potential clastogen (a chemical that induces disruption and breakage of chromosomes).
Daily topical application of Condylox 0.5% Solution at doses up to the equivalent of 0.2 mg/kg (5 times the recommended maximum human dose) to rats throughout gametogenesis, mating, gestation, parturition and lactation for two generations demonstrated no impairment of fertility.
Podofilox was not teratogenic in the rabbit following topical application of up to 0.21 mg/kg (5 times the maximum human dose) once daily for 13 days. The scientific literature contains references that podofilox is embryotoxic in rats when administered systemically in a dose approximately 250 times the recommended maximum human dose.8,9 Teratogenicity and embryotoxicity have not been studied with intravaginal application. Many antimitotic drug products are known to be embryotoxic. There are no adequate and well-controlled studies in pregnant women. Podofilox should be used in pregnancy only if the potential benefit justifies the potential risk to the fetus.
It is not known whether this drug is excreted in human milk. Because of the potential for serious adverse reactions in nursing infants from podofilox, a decision should be made whether to discontinue nursing or to discontinue the drug, taking into account the importance of the drug to the mother.
Safety and effectiveness in pediatric patients have not been established.
1. Berenblum I. The effect of podophyllotoxin on the skin of the mouse, with reference to carcinogenic, cocarcinogenic, and anticarcinogenic action. J Cancer Inst 11:839-841, 1951.
2. Kaminetzky HA, Swerdlow M. Podophyllin and the mouse cervix: assessment of carcinogenic potential. Am J Obst Gyn 95:486-490, 1965.
3. McGrew EA, Kaminetzky HA. The genesis of experimental cervical epithelial dysplasia. Am J Clin Path 35:538-545, 1961.
4. Roe FJC, Salaman MH. Further studies on incomplete carcinogenesis: triethylene melamine (T.E.M.) 1,2 benxanthracene and beta-propiolactone as initiators of skin tumor formation in the mouse. Brit J Cancer, 9:177-203, 1955.
5. Taper HS. Induction of the deficient acid DNAase activity in mouse interfollicular epidermis by croton oil as a possible tumor promoting mechanism. Zeitschrift fur Krebsforschung and Klinisch Onkologie (Cancer Research and Clinical Oncology, Berlin). 90:197-210, 1977.
6. Kaminetzky HA, McGrew EA, Phillips RL. Experimental cervical epithelial dysplasia. J Obst Gyn 14:1-10, 1959.
7. Kaminetzky HA, McGrew EA: Podophyllin and mouse cervix: Effect of long term application. Arch Path 73:481-485, 1962.
8. Didcock K, Jackson D, Robson JM. The action of some nucleotoxic substances on pregnancy. Brit J Pharmacol 11:437-441, 1956.
9. Thiersch JB. Effect of podophyllin (P) and podophylotoxine (PT) on the rat litter in utero. Soc Exptl Biol Med Proc. 113:124-127, 1963.This monograph has been modified to include the generic and brand name in many instances.
Last reviewed on RxList: 11/21/2016
Additional Condylox Topical Information
Podofilox Topical Solution - User Reviews
Report Problems to the Food and Drug Administration
You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.
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