21 CFR § 340.3 - Definition.

---
identifier: "/us/cfr/t21/s340.3"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "21 CFR § 340.3 - Definition."
title_number: 21
title_name: "Food and Drugs"
section_number: "340.3"
section_name: "Definition."
chapter_name: "FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES"
subchapter_number: "D"
subchapter_name: "DRUGS FOR HUMAN USE"
part_number: "340"
part_name: "STIMULANT 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: "53 FR 6105, Feb. 29, 1988, unless otherwise noted."
cfr_part: "340"
---


# 340.3 Definition.

As used in this part:

*Stimulant.* A drug which helps restore mental alertness or wakefulness during fatigue or drowsiness.