---
kind: "section"
citation: "21 C.F.R. § 349.18"
title: "21"
number: "349.18"
heading: "Ophthalmic vasoconstrictors."
url: "https://uscodex.org/cfr/21/349.18"
---

# §349.18. Ophthalmic vasoconstrictors.


The active ingredient of the product consists of one of the following, within the established concentration for each ingredient:

- (a) Ephedrine hydrochloride, 0.123 percent.
- (b) Naphazoline hydrochloride, 0.01 to 0.03 percent.
- (c) Phenylephrine hydrochloride, 0.08 to 0.2 percent.
- (d) Tetrahydrozoline hydrochloride, 0.01 to 0.05 percent.

## Notes

### Authority

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

### Source

Source: 53 FR 7090, Mar. 4, 1988, unless otherwise noted.