002057 Podophyllum Resin

CATEGORIES: Condyloma acuminataFDA Pre 1938 DrugsPregnancy Category XWHO Formulary

FDS Drug Classes: DermatologicsDestructive agents

BRAND NAMES: Condil Podoben Podocon-25 Pododerm Podofilia No. 2 Podofin

FOREIGN BRAND AVAILABILITY:

Condil (Mexico)
Podofilia No. 2 (Mexico)

DESCRIPTION

Podocon-25 is composed of Podophyllin (Podophyllum Resin, American) 25% in Benzoin Tincture. Podophyllum Resin is the powdered mixture of resins removed from the May apple or Mandrake (Podophyllum peltatum Linne'), a perennial plant of northern and middle United States.1 The podophyllin resin used in this product is exclusively the American podophyllin (rather than the Indian resin). American podophyllin typically has a reduced level of podophyllotoxin (see below).

CLINICAL PHARMACOLOGY

Podophyllin is a cytotoxic agent that has been used topically in the treatment of genital warts. It arrests mitosis in metaphase, an effect it shares with other cytotoxic agents such as the vinca alkaloids.2 The active agent is podophyllotoxin, whose concentration varies with the type of podophyllin used; the American source normally containing one-fourth the amount of podophyllotoxin as the Indian source.3

NOTE:

PODOPHYLLUM RESIN IS TO BE APPLIED ONLY BY A PHYSICIAN. IT IS NOT TO BE DISPENSED TO THE PATIENT.

INDICATIONS AND USAGE

Podophyllum resin is indicated for the removal of soft genital (venereal) warts (condylomata acuminata).4

CONTRAINDICATIONS

Podophyllum resin is contraindicated in diabetics, patients using steroids or with poor blood circulation. Podophyllum resin should not be used on bleeding warts, moles, birthmarks or unusual warts with hair growing from them. It is recommended that podophyllum resin not be used during pregnancy (see PRECAUTIONS, Pregnancy).

WARNINGS

Podophyllin is a powerful caustic and severe irritant. Keep away from the eyes; if eye contact occurs, flush with copious amounts of warm water and consult physician or poison control center immediately for advice.

PRECAUTIONS

Do not use podophyllum resin if wart or surrounding tissue is inflamed or irritated. Do not use on bleeding warts, moles, birthmarks or unusual warts with hair growing from them.

Pregnancy

There have been reports of complications associated with the topical use of podophyllin on condylomata of pregnant patients including birth defects, fetal death and stillbirth.5 In the absence of controlled safety studies, podophyllin remains contraindicated for use on pregnant patients.

Nursing Mothers

It is not known whether podophyllin is excreted in human milk following topical application. In the absence of controlled safety studies, podophyllin remains contraindicated for use on nursing patients.

ADVERSE REACTIONS

The use of topical podophyllin has been known to result in paresthesia, polyneuritis, paralytic ileus, pyrexia, leukopenia, thrombocytopenia, coma and death.6

DOSAGE AND ADMINISTRATION

PODOPHYLLUM RESIN IS TO BE APPLIED ONLY BY A PHYSICIAN. IT IS NOT TO BE DISPENSED TO THE PATIENT:

Thoroughly cleanse affected area. Use supplied applicator to apply podophyllum resin sparingly to lesion. Avoid contact with healthy tissue. Allow to dry thoroughly. Only intact (no bleeding) lesions should be treated. As podophyllin is a powerful caustic and severe irritant, it is recommended the first application of podophyllum resin be left in contact for only a short time (30-40 minutes) to determine patient's sensitivity. To avoid systemic absorption, time of contact should be minimum time necessary to produce the desired result (1-4 hours, depending on condition of lesion and of patient), the physician developing his/her own experience and technique. Large areas or numerous warts should not be treated at once.

After treatment time has elapsed, remove dried podophyllum resin thoroughly with alcohol or soap and water.

1.

Blumgarten, A.F.: Text Book of Materia Medica, Pharmacology and Therapeutics ; Ed. 7, New York, The Macmillan Company, 1937, pp. 220 and 223.

2.

Green, L.K., Klima, M., Burns, T.; Arch Dermatol. Vol 124, Nov 1988, p. 1718.

3.

Martindale, 28th Ed. London, 1982, pp. 1366, 1367.

4.

Medical Letter; Vol 26, New Rochelle, N.Y., 1984, p10.

5.

Zackheim: Hazards of Topical Mitotic-Blocking Agents; Arch. Dermat. Volume 113, 1977.

6.

Fisher: Severe Systemic and Local Reactions to Topical Podophyllum Resins; Cutis , Volume 28, 1981.

HOW SUPPLIED

Store at room temperature 15-30° C (59-86° F) in tight, light-resistant containers.