US lawFederal (United States)RegulationsTitle 21 CFR — Food and DrugsChapter I — FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICESPart 332 — ANTIFLATULENT PRODUCTS FOR OVER-THE-COUNTER HUMAN USESubpart B — Active Ingredients332.1021 C.F.R. § 332.10Antiflatulent active ingredients.Last amended: 2016Year: 2026Length: 17 wordsOfficial source Cite as 21 C.F.R. § 332.10 (2026)Simethicone; maximum daily dose 500 mg. There is no dosage limitation at this time for professional labeling.Next21 C.F.R. § 332.15