Colchicine USP from Mexico
Colchicine USP is an alkaloid drug containing a tropolone ring system (seven-membered heterocycle with oxygen), used for gout and Mediterranean fever. Classified as HTS 2934.99.4700 drug due to its complex heterocyclic structure and pharmaceutical use. Excluded from Chapter 29 alkaloid headings.
Duty Rate — Mexico → United States
110%
Rate breakdown
9903.04.6096.3%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
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• DEA Schedule III controls apply - obtain import permit; light-sensitive, use amber packaging; purity certificate essential to avoid 2939 alkaloid classification