Pyrimethamine 25mg Tablets from Mexico
Pyrimethamine 25mg tablets, antifolate antimalarial agent per note 2, used with sulfa for toxoplasmosis and malaria. Measured retail doses under HTS 3004.60.00.00. Often combined but available unmixed.
Duty Rate — Mexico → United States
100%
Rate breakdown
9903.04.60100%Pharmaceuticals Annex IV: patented pharma articles — 100% floor rate
9903.05.860%Universal product exemption (U.S. note 52(b))
9903.05.900%Articles already subject to Section 232 (steel/aluminum/copper + derivatives, autos + parts, wood, medium/heavy vehicles + parts, semiconductors, patented pharma) — U.S. note 52(f)
Import Tips
• Co-prescribe folic acid warnings; pediatric scoring lines verified
• Common misclassification as veterinary dewormer
• Batch folate antagonism testing