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
0%
Rate breakdown
9903.05.860%Universal product exemption (U.S. note 52(b))
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