Clemastine Fumarate from Japan
Clemastine fumarate is a second-generation antihistamine with anti-nauseant applications in allergy treatment. Modified aromatic heterocyclic structure under HTS 2933.59.21.00. Fits chapter for drugs with nitrogen hetero-atoms.
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
• Fumarate salt per note C; HPLC purity cert needed
• Pitfall: brightening agent additives exclude to 3204
• GMP sourcing prevents detentions