Clemastine Fumarate from Mexico
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 — Mexico → United States
16.5%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Fumarate salt per note C; HPLC purity cert needed
• Pitfall: brightening agent additives exclude to 3204
• GMP sourcing prevents detentions