Medical Information Only: This medication is not sold on this site. The information provided is for reference purposes only. Please consult your local physician or pharmacist for treatment.

nystatin topical (Mycostatin topical, Pediaderm AF, PediDri): Dosing and Uses

 

Classes: Antifungals, Topical

Medically reviewed by Min Clinic Staff | Updated: January 2026

Dosing and uses of Mycostatin topical, Pediaderm AF (nystatin topical)

 

Adult dosage forms and strengths

cream/ointment/powder

  • 100,000unit/g

 

Mucocutaneous Infection

Apply to affected area q8-12hr for 2 weeks

See also combo with triamcinolone

 

Vaginal Infections

Insert 1 tablet/day qHS for 2 weeks

 

Administration

Cream preferred to ointment in candidiasis involving intertriginous areas

Moist lesions best treated with powder

 

Pediatric dosage forms and strengths

cream/ointment/powder

  • 100,000unit/g

 

Mucocutaneous Infection

Apply to affected area q8-12hr for 2 weeks

 

Mycostatin topical, Pediaderm AF (nystatin topical) adverse (side) effects

Frequency not defined

Nontoxic; well tolerated by all age groups

Contact dermatitis

Stevens-Johnson syndrome

Acneiform eruption (rare)

 

Warnings

Contraindications

Hypersensitivity

Ophthalmic use

 

Pregnancy and lactation

Pregnancy category: B

Lactation: No studies

 

Pregnancy categories

A: Generally acceptable. Controlled studies in pregnant women show no evidence of fetal risk.

B: May be acceptable. Either animal studies show no risk but human studies not available or animal studies showed minor risks and human studies done and showed no risk.

C: Use with caution if benefits outweigh risks. Animal studies show risk and human studies not available or neither animal nor human studies done.

D: Use in LIFE-THREATENING emergencies when no safer drug available. Positive evidence of human fetal risk.

X: Do not use in pregnancy. Risks involved outweigh potential benefits. Safer alternatives exist.

NA: Information not available.

 

Pharmacology of Mycostatin topical, Pediaderm AF (nystatin topical)

Mechanism of action

Binds to fungal cell membrane sterols; as a result, the membrane no longer functions as a selective barrier, and potassium and other cellular constituents are lost

 

Absorption

Not from intact skin or mucous membrane