Promethazine Hydrochloride from Japan
Promethazine hydrochloride, a phenothiazine derivative, serves as an antihistamine, antiemetic, and sedative with tranquilizing properties used for motion sickness and preoperative sedation. Classified under HTS 2934.30.23.00 due to its psychotherapeutic applications and phenothiazine ring structure. Typically imported as API powder for pharmaceutical manufacturing.
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
• Provide USP/EP certificate confirming compliance with pharmacopeial standards for identity and purity
• Include stability data showing 24-month shelf life under ICH conditions to satisfy FDA import requirements
• Avoid common pitfall of improper packaging; use double PE-lined drums to prevent moisture contamination