Sulfisoxazole from Canada
Sulfisoxazole is a short-acting sulfonamide antibiotic effective against a wide range of gram-positive and gram-negative bacteria, commonly used in pediatric ear infections and urinary tract infections. It qualifies for HTS 2935.90.60.00 as a sulfonamide drug meeting Chapter 29 criteria for separate chemically defined organic compounds used pharmaceutically. The molecule features the classic p-aminobenzenesulfonamide structure.
Duty Rate — Canada → United States
16.5%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Submit FDA registration and drug listing numbers for the manufacturing facility to expedite clearance
• Include microbial limit testing results as sulfonamides are prone to contamination issues during import
• Avoid bulk packaging that suggests industrial use to maintain pharmaceutical classification