Sulfadiazine Sodium from Mexico
Sulfadiazine sodium is the sodium salt of a sulfonamide antibiotic used to treat toxoplasmosis and certain bacterial infections, often in veterinary and human medicine. Classified under HTS 2935.90.75.00 per additional U.S. note 3 to section VI for specific sulfonamides. It's imported as a bulk active ingredient for compounding.
Duty Rate — Mexico → United States
100%
Rate breakdown
9903.04.6093.5%Pharmaceuticals Annex IV: patented pharma articles — 100% floor rate
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
• Include salt content in chemical composition declaration; obtain prior FDA notice for drug substances; watch for stability data requirements during transport to prevent degradation