Famotidine Base from Canada
Famotidine is an aromatic amide H2-receptor antagonist used for ulcer treatment, featuring complex cyclic amide structure. HTS 2924.29.77.90 as other aromatic cyclic amide. Pharmaceutical API with thioether functionality.
Duty Rate — Canada → United States
110%
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
9903.05.2910%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
• GMP certificate essential for API import; chiral purity documentation if enantiopure
• Bulk vs tablet form critical distinction for chapter determination