Sulfamethoxydiazine from Mexico
Sulfamethoxydiazine offers extended action for chronic infections with good tissue penetration. HTS 2935.90.4800 as sulfonamide anti-infective per Chapter 29(a). Used in nocardiosis and toxoplasmosis.
Duty Rate — Mexico → United States
100%
Rate breakdown
9903.04.6093.5%Pharmaceuticals: 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
• Tissue distribution studies support deep infection claims
• Low protein binding documentation aids dosing calculations
• Photostability testing for diazine light sensitivity