{"data":{"id":"us/21-cfr-333.203","jurisdiction":"us","citation":"21 CFR 333.203","heading":"Definitions.","body":"As used in this subpart:\n(a) Antifungal. A drug which inhibits the growth and reproduction of fungal cells and decreases the number of fungi present.\n(b) Athlete's foot. An infection of the feet caused by certain dermatophytic fungi.\n(c) Dermatophyte. A fungus that invades and lives upon the skin or in the hair or nails.\n(d) Fungus. Any of a large division of plants, including dermatophytes, yeasts, and molds, characterized by a simple cell structure and the absence of chlorophyll.\n(e) Jock itch. A chronic and recurrent infection caused by certain dermatophytic fungi; affects the upper, inner thighs and sometimes extends to the groin and the pubic area; the condition most frequently occurs in men, but may also occur in women.\n(f) Ringworm. A skin infection caused by certain dermatophytic fungi.","path":["Title 21—Food and Drugs","CHAPTER I—FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES","SUBCHAPTER D—DRUGS FOR HUMAN USE","PART 333—TOPICAL ANTIMICROBIAL DRUG PRODUCTS FOR OVER-THE-COUNTER HUMAN USE","Subpart C—Topical Antifungal Drug Products"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-21.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:24:47Z","sha256":"1ae4a7c8daafe62d02a0364646b961136e0cc8a866be7a1a8b5e238c243876ed","source_id":"us-cfr","stale":true,"prev":"us/21-cfr-333.201","next":"us/21-cfr-333.210"},"notice":"GroundRules: Original legal text. Not legal advice."}