Theophylline Vet Extended-Release Tablets from Mexico
Extended-release theophylline tablets, a xanthine alkaloid derivative, treat bronchial asthma in dogs with measured daily dosing. Packaged for retail veterinary sale. Classified under HTS 3004.49.00.05 as veterinary therapeutic containing alkaloids.
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
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
• Dissolution profile testing required for ER formulations
• Distinguish from human versions via vet-specific strength/packaging
• Combo with antibiotics risks 3004.40 reclassification