MedicalTerminology DB

Meaning of nystatin: The active ingredient in a drug used to treat infections caused by fungi (a type of microorganism).

Definition of nystatin

The active ingredient in a drug used to treat infections caused by fungi (a type of microorganism). Nystatin is made by certain strains of bacteria and kills fungi by binding to their membranes. It is a type of antifungal agent.

Written and maintained by James Murray Last updated July 21, 2026 Educational reference, not medical advice. Read the limitations.

For learning, not diagnosis. This glossary provides general educational information and is not a substitute for advice from a qualified healthcare professional. If you may be experiencing a medical emergency, contact local emergency services.