Doxylamine Succinate from China
Doxylamine succinate, an ethanolamine antihistamine, primarily treats nausea in pregnancy and insomnia. Its pyrimidine-containing structure fits HTS 2933.59.21.00 for anti-nauseant aromatic drugs. Qualifies as chemically defined salt per chapter notes.
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
• Succinate salt follows acid classification per note C(2); include dissolution stability
• Pitfall: pregnancy-specific claims may trigger FDA review
• Bulk drums must be UN-approved