Overview
DESCRIPTION Nystatin is a polyene antifungal antibiotic obtained from Streptomyces nursei. Nyamyc® (Nystatin Topical Powder, USP) is for dermatologic use. Nyamyc® (Nystatin Topical Powder, USP) contains 100,000 USP nystatin units per gram dispersed in talc. Chemical Structure
Mechanism of Action
CLINICAL PHARMACOLOGY Pharmacokinetics Nystatin is not absorbed from intact skin or mucous membrane. Microbiology Nystatin is an antibiotic which is both fungistatic and fungicidal in vitro against a wide variety of yeasts and yeast-like fungi, including Candida albicans, C. parapsilosis, C. tropicalis, C. guilliermondi, C. pseudotropicalis, C. krusei, Torulopsis glabrata, Tricophyton rubrum, T. mentagrophytes. Nystatin acts by binding to sterols in the cell membrane of susceptible species resulting in a change in membrane permeability and the subsequent leakage of intracellular components. On repeated subculturing with increasing levels of nystatin, Candida albicans does not develop resistance to nystatin. Generally, resistance to nystatin does not develop during therapy.
Indications
- INDICATIONS AND USAGE Nyamyc® (Nystatin Topical Powder, USP) is indicated in the treatment of cutaneous or mucocutaneous mycotic infections caused by Candida albicans and other susceptible Candida species. Nyamyc® (Nystatin Topical Powder, USP) is not indicated for systemic, oral, intravaginal or ophthalmic use.
Common Doses
- Refer to label
Dosage
DOSAGE AND ADMINISTRATION Very moist lesions are best treated with the topical dusting powder. Adults and Pediatric Patients (Neonates and Older) Apply to candidal lesions two or three times daily until healing is complete. For fungal infection of the feet caused by Candida species, the powder should be dusted on the feet, as well as, in all foot wear.
Contraindications
- CONTRAINDICATIONS Nyamyc® (Nystatin Topical Powder, USP) is contraindicated in patients with a history of hypersensitivity to any of its components.
Side Effects
- ADVERSE REACTIONS The frequency of adverse events reported in patients using nystatin topical preparations is less than 0.1%. The more common events that were reported include allergic reactions, burning, itching, rash, eczema, and pain on application. [see PRECAUTIONS: General ].
Interactions
- No major interactions listed on the FDA label. Always consult a healthcare professional.