Cinnarizine from Canada
Cinnarizine, a piperazine antihistamine, prevents motion sickness and vertigo. Falls under HTS 2921.30.10.00 as a cyclenic polyamine derivative wholly derived from aromatic compounds, per additional U.S. note 3.
Duty Rate — Canada → United States
16.5%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Provide synthesis pathway documentation proving aromatic derivation
• Label with correct INN name and CAS (523-87-5) for customs clearance
• Monitor for anti-dumping duties on specific Asian origins