Neutral Protamine Hagedorn (NPH) Insulin from Mexico
Isophane insulin suspension complexed with protamine for intermediate action. Despite protamine addition, classifies as insulin derivative under HTS 2937.12.00.00 per hormone heading specificity.
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
• Protamine-insulin complex stability requires continuous 2-8°C; validate suspension integrity
• Declare as insulin-protamine complex, not separate protein mixture
• Pure hormone derivative status preserved despite complexing agent