Doxylamine Succinate from Japan
Doxylamine succinate, an ethanolamine ether salt, acts as a sedating antihistamine drug with aromatic oxygen-function amino structure. HTS 2922.49.26.00 applies as other aromatic amino-acid salt drug. Chapter 29 numerical order places it here over earlier ether headings.
Duty Rate — Japan → United States
15%
Rate breakdown
9903.04.628.5%Pharmaceuticals: patented pharma from JP/EU/KR/CH/LI — 15% 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
• Verify succinate salt form with NMR/FTIR spectra in docs
• Controlled substance precursor check required
• Declare particle size distribution for bioavailability claims