Cyclizine Hydrochloride from China
Cyclizine hydrochloride is a piperazine-based antihistamine used mainly for preventing motion sickness and treating vertigo/nausea. Its heterocyclic structure with piperazine ring qualifies it under HTS 2933.59.21.00 as an aromatic antihistamine anti-nauseant. Chapter notes confirm classification for separate chemically defined compounds with nitrogen hetero-atoms.
Duty Rate — China → 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
• Include stability data for hydrochloride salt per chapter note (f); avoid anti-dusting agents that imply specific use
• Pitfall: bulk vs diluted forms—ensure solvent use only for transport/safety
• FDA prior notice mandatory for APIs