Quinidine Sulfate Dihydrate from Mexico
Quinidine sulfate dihydrate is the principal antiarrhythmic salt form of quinidine from cinchona, used in oral solid dosage forms. Falls under HTS 2939.20.0050 as other cinchona derivatives. Pharmaceutical grade with defined hydrate.
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
Import Tips
• Certificate must specify dihydrate water content (9-10.5%)
• Provide polymorphic form identification (Form I vs II)
• Include microbial limits testing for oral grade API