21 CFR § 333.103 - Definitions.

---
identifier: "/us/cfr/t21/s333.103"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "21 CFR § 333.103 - Definitions."
title_number: 21
title_name: "Food and Drugs"
section_number: "333.103"
section_name: "Definitions."
chapter_name: "FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES"
subchapter_number: "D"
subchapter_name: "DRUGS FOR HUMAN USE"
part_number: "333"
part_name: "TOPICAL ANTIMICROBIAL DRUG PRODUCTS FOR OVER-THE-COUNTER HUMAN USE"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "21 U.S.C. 321, 351, 352, 353, 355, 360, 371."
regulatory_source: "52 FR 47322, Dec. 11, 1987, unless otherwise noted."
cfr_part: "333"
---


# 333.103 Definitions.

As used in this subpart:

*First aid antibiotic.* An antibiotic-containing drug product applied topically to the skin to help prevent infection in minor cuts, scrapes, and burns.

[52 FR 47322, Dec. 11, 1987, as amended at 64 FR 403, Jan. 5, 1999]