Nimodipine from Mexico
Nimodipine is a lipophilic 1,4-dihydropyridine indicated for cerebral vasospasm prevention post-subarachnoid hemorrhage. As a nitrogen-heterocyclic cardiovascular drug, it falls under HTS 2933.99.53.00. Imported as oily liquid or powder for IV and oral formulations.
Duty Rate — Mexico → United States
16.5%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Class 2 solvent limits critical - ethanol ≤5000ppm, no dichloromethane
• E-isomer content <0.5% required for potency
• Oil-in-water emulsion precursor - viscosity specs mandatory