Meclizine Hydrochloride from Canada
Meclizine hydrochloride is a piperazine antihistamine primarily indicated for motion sickness prevention and vertigo treatment. Its modified aromatic structure with piperazine qualifies for HTS 2933.59.21.00 as an anti-nauseant drug. Chapter notes support classification of such chemically defined pharmaceuticals.
Duty Rate — Canada → 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
• Provide NMR spectra confirming piperazine ring; avoid retail packing implying Chapter 32/38 exclusions
• Pitfall: salt form misdeclared as base—use note C(1) for salts
• FDA DMF registration required