Mefenamic Acid from Canada
Mefenamic acid is a 2,3-dimethylphenyl anthranilic acid NSAID for dysmenorrhea. Features aromatic carboxylic acid with additional oxygen function, classified as drug in HTS 2918.99.3000. Pure API for capsule production.
Duty Rate — Canada → 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
• Confirm dimethyl substitution pattern via NMR
• Monitor for N-oxide impurities
• Ensure ICH Q3D elemental impurities compliance