Levothyroxine Sodium BP/EP Grade from Mexico
European Pharmacopoeia (EP) and British Pharmacopoeia (BP) compliant levothyroxine sodium for international thyroid hormone formulations. Falls under HTS 2937.90.4000 as the chemically defined sodium salt of l-thyroxine, a Chapter 29 hormone derivative.
Duty Rate — Mexico → United States
100%
Rate breakdown
9903.04.60100%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
9903.05.860%Articles provided for in subdivision (b) of U.S. note 52 to this subchapter
Import Tips
• Provide EP/BP certificates of compliance; US importers often need USP equivalence bridging studies
• Declare iodine content precisely (<0.1% free iodine); impurities affect classification purity
• Avoid retail packaging; bulk drums only to prevent Chapter 30 misclassification