Famotidine from Canada
Famotidine, an H2-receptor antagonist for acid reduction, contains a thiazole ring linked to guanidine functionality. Bulk active pharmaceutical ingredient classifies under HTS 2934.10.90.00 due to predominant unfused thiazole heterocyclic structure. Used in medications like Pepcid.
Duty Rate — Canada → United States
100%
Rate breakdown
9903.04.6093.5%Pharmaceuticals Annex IV: patented pharma articles — 100% floor rate
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
• Include FDA Drug Master File (DMF) reference number on import documentation
• Provide polymorphic form analysis if patent-protected crystal structure required
• Ensure GMP certificate from manufacturing site for pharmaceutical grade verification