21 CFR § 336.80 - Professional labeling.

---
identifier: "/us/cfr/t21/s336.80"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "21 CFR § 336.80 - Professional labeling."
title_number: 21
title_name: "Food and Drugs"
section_number: "336.80"
section_name: "Professional labeling."
chapter_name: "FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES"
subchapter_number: "D"
subchapter_name: "DRUGS FOR HUMAN USE"
part_number: "336"
part_name: "ANTIEMETIC 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 15892, Apr. 30, 1987, unless otherwise noted."
cfr_part: "336"
---


# 336.80 Professional labeling.

The labeling provided to health professionals (but not to the general public) may contain the following additional indications.

(a) *For products containing cyclizine hydrochloride, dimenhydrinate, and diphenhydramine hydrochloride identified in § 336.10 (a), (b), and (c).* “For the treatment of vertigo of motion sickness.”

(b) *For products containing meclizine hydrochloride identified in § 336.10(d).* “For the treatment of vertigo.”