Vitamin B2 400mg Capsules from Mexico
High-potency 400mg riboflavin capsules for migraine prevention, synthesized partly from modified aromatic compounds, in measured doses for retail sale. Classified under HTS 3004.50.10.00 due to its single-ingredient therapeutic formulation in consumer packs.
Duty Rate — Mexico → United States
100%
Rate breakdown
9903.04.60100%Pharmaceuticals Annex IV: patented pharma articles — 100% floor rate
9903.05.860%Universal product exemption (U.S. note 52(b))
9903.05.900%Articles already subject to Section 232 (steel/aluminum/copper + derivatives, autos + parts, wood, medium/heavy vehicles + parts, semiconductors, patented pharma) — U.S. note 52(f)
Import Tips
• Provide documentation proving aromatic synthesis origin to avoid reclassification to other vitamin subheadings
• Comply with FDA supplement facts panel but highlight prophylactic claims for Chapter 30 eligibility
• Watch for common pitfalls like insufficient dose metering leading to bulk chemical classification