Nystatin - Par Pharmaceutical Inc.

Nystatin is not absorbed from intact skin or mucous membrane.

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. However, other species of Candida (C. tropicalis, C. guilliermondi, C. krusei, and C. stellatoides) become quite resistant on treatment with nystatin and simultaneously become cross resistant to amphotericin as well. This resistance is lost when the antibiotic is removed.

Nystatin exhibits no appreciable activity against bacteria, protozoa, or viruses.

Nystatin topical powder should not be used for the treatment of systemic, oral, intravaginal or ophthalmic infections.

If irritation or sensitization develops, treatment should be discontinued and appropriate measures taken as indicated. It is recommended that KOH smears, cultures, or other diagnostic methods be used to confirm the diagnosis of cutaneous or mucocutaneous candidiasis and to rule out infection caused by other pathogens.

If there is a lack of therapeutic response, KOH smears, cultures, or other diagnostic methods should be repeated.

No long-term animal studies have been performed to evaluate the carcinogenic potential of nystatin. No studies have been performed to determine the mutagenicity of nystatin or its effects on male or female fertility.

It is not known whether nystatin is excreted in human milk. Caution should be exercised when nystatin is prescribed for a nursing woman.

Safety and effectiveness have been established in the pediatric population from birth to 16 years.

(See DOSAGE AND ADMINISTRATION.)

NystatinTopical Powder: Store at 20-25º C (68-77º F) [See USP Controlled Room Temperature]; avoid excessive heat (40^o C; 104^o F). Keep tightly closed.

Rx Only

Manufactured by:

KALI LABORATORIES, INC.

Somerset, NJ 08873 USA

Distributed by:

PAR PHARMACEUTICAL, INC.

Spring Valley, NY 10977 USA

Issued: 05/03