Methadone Phosphate from Japan
Methadone phosphate provides a buffered salt form for oral solutions in opioid maintenance programs. Under HTS 2922.31.00.00, classified with the methadone base per salt rules in chapter notes, as an oxygen-function amino-ketone. Pure form without multi-oxygen functions.
Duty Rate — Japan → United States
15%
Rate breakdown
9903.04.6215%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
• Ensure pH stability certification; comply with narcotic manifest filing; avoid delays from missing end-user statements