Promethazine Hydrochloride from Mexico
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 — Mexico → United States
100%
Rate breakdown
9903.04.6093.5%Except as provided in heading 9903.04.61, patented pharmaceutical articles as provided for in subdivisions (c) and (d) of U.S. note 40 to this subchapter
9903.05.900%Articles of aluminum, of steel or of copper or derivative aluminum or steel articles; passenger vehicles (sedans, sport utility vehicles, crossover utility vehicles, minivans and cargo vans) and light trucks; parts of passenger vehicles (sedans, sport utility vehicles, crossover utility vehicles, minivans and cargo vans) and light trucks; medium- and heavy-duty vehicles; parts of medium- and heavy-duty vehicles; wood products; patented pharmaceutical articles; and semiconductor articles, as provided in subdivision (f) of U.S. note 52 to this subchapter
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