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Regulations last checked for updates: May 23, 2025

Title 21 - Food and Drugs last revised: May 19, 2025
All TitlesTitle 21Chapter IPart 341Subpart 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. 321,351,352,353,355,360,371
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