Cholestyramine USP Ion-Exchange Beads from Japan
Uniform spherical beads of cross-linked polyvinylbenzyltrimethylammonium chloride (Cholestyramine USP) designed for bile acid sequestration in cholesterol-lowering therapies. Classified under HTS 3914.00.20.00 due to its exact chemical specification as a primary-form ion-exchanger.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Include particle size distribution and swelling index test data in documentation; ensure bead form doesn't trigger 'articles' classification under 3917+; watch for FDA prior notice requirements as pharmaceutical precursor