Regulations last checked for updates: May 02, 2025

Title 21 - Food and Drugs last revised: Apr 28, 2025
All TitlesTitle 21Chapter IPart 349Subpart B - Subpart B—Active Ingredients
View all text of Subpart B [§ 349.10 - § 349.30]
§ 349.10 - Ophthalmic astringent.

The active ingredient and its concentration in the product is as follows: Zinc sulfate, 0.25 percent.

authority: 21 U.S.C. 321,351,352,353,355,360,371
source: 53 FR 7090, Mar. 4, 1988, unless otherwise noted.
cite as: 21 CFR 349.10
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