Phentermine Hydrochloride from Canada
Phentermine hydrochloride is the hydrochloride salt of phentermine (INN), explicitly covered by HTS 2921.46.00.00 as an aromatic monoamine derivative. This anorectic agent is imported as a bulk pharmaceutical chemical for appetite suppressant formulations. The heading applies to both the base and its salts as separate chemically defined compounds.
Duty Rate — Canada → United States
110%
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
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter
Import Tips
• Submit FDA Drug Master File and ensure GMP compliance certification for active pharmaceutical ingredients
• Include stability data and impurity profiles in documentation to meet chemical identity requirements
• Beware of quotas on controlled substances; phentermine is DEA Schedule IV