---
kind: "section"
citation: "21 C.F.R. § 336.10"
title: "21"
number: "336.10"
heading: "Antiemetic active ingredients."
url: "https://uscodex.org/cfr/21/336.10"
---

# §336.10. Antiemetic active ingredients.


The active ingredient of the product consists of any of the following when used within the dosage limits established for each ingredient in [§ 336.50(d)](/cfr/21/336.50.md?p=d):

- (a) **Cyclizine hydrochloride.**
- (b) **Dimenhydrinate.**
- (c) **Diphenhydramine hydrochloride.**
- (d) **Meclizine hydrochloride.**

## Notes

### Authority

Authority: 21 U.S.C. 321, 351, 352, 353, 355, 360, 371.

### Source

Source: 52 FR 15892, Apr. 30, 1987, unless otherwise noted.