</>Build with Tariff Intelligence|Programmatic access to tariff calculations and HS code classification.Explore Developer Resources →

Dronedarone Hydrochloride from Japan

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 — Japan → United States

12.5%

Rate breakdown

9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%

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