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Regulations last checked for updates: May 23, 2025
Title 21 - Food and Drugs last revised: May 19, 2025
All Titles
Title 21
Chapter I
Part 341
Subpart B - Subpart B—Active Ingredients
§ 341.12 - Antihistamine active ingredients.
§ 341.14 - Antitussive active ingredients.
§ 341.16 - Bronchodilator active ingredients.
§ 341.18 - Expectorant active ingredient.
§ 341.20 - Nasal decongestant active ingredients.
§ 341.40 - Permitted combinations of active ingredients.
authority:
21 U.S.C. 321
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351
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352
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353
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355
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360
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371
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