Dronedarone Hydrochloride from Canada
Dronedarone hydrochloride, multichannel blocker for atrial fibrillation, has complex nitrogen-heterocyclic structure. Classifies under HTS 2933.99.53.00 as antiarrhythmic cardiovascular drug. Hydrochloride salt imported as Form II crystals.
Duty Rate — Canada → United States
100%
Rate breakdown
9903.04.6093.5%Pharmaceuticals: 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
• Form II crystalline - Form I less stable for tableting
• Hepatotoxicity risk - include ALT/AST elevation clinical data
• Multi-channel activity - full electrophysiology profile needed