Sulfamethoxazole USP
Sulfamethoxazole is a synthetic bacteriostatic sulfonamide antibiotic used primarily as an anti-infective agent against gram-positive and gram-negative bacteria. It falls under HTS 2935.90.4800 as a sulfonamide classified as an anti-infective drug, typically used in combination therapies like co-trimoxazole. This chemically defined organic compound meets Chapter 29 note (a) for separate sulfonamides.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If imported as finished tablet or suspension dosage form
Medicaments in measured doses for retail sale fall under Chapter 30, regardless of sulfonamide composition.
If primarily veterinary use rather than human anti-infective
Sulfonamides specifically for veterinary pharmaceuticals classify under separate veterinary subheading.
If imported as mixture with excipients exceeding 20% by weight
Chemical preparations containing multiple active ingredients may classify as mixtures under Chapter 38.
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Import Tips & Compliance
• Provide FDA Drug Master File (DMF) and Certificate of Analysis confirming USP purity and anti-infective pharmacological action
• Include detailed chemical structure documentation to verify sulfonamide classification under Chapter 29 notes
• Avoid misclassification as finished dosage forms; ensure import as bulk API only to prevent Chapter 30 reclassification
Related Products under HTS 2935.90.48.00
Sulfadiazine Sodium
Sulfadiazine sodium is a water-soluble salt form of the sulfonamide antibiotic sulfadiazine, used for treating toxoplasmosis and other bacterial infections. Classified under HTS 2935.90.4800 as a sulfonamide anti-infective drug per Chapter 29 note (C)(1) for inorganic salts of organic compounds. The sodium salt retains the sulfonamide therapeutic classification.
Sulfapyridine Base
Sulfapyridine is a historic sulfonamide antibiotic still used in dermatological treatments like dermatitis herpetiformis. Falls under HTS 2935.90.4800 as a chemically defined sulfonamide anti-infective agent per Chapter 29(a). Its continued pharmacological use maintains drug classification despite age.
Sulfamethizole Powder
Sulfamethizole is a fast-acting sulfonamide specifically indicated for urinary tract infections. Classified under HTS 2935.90.4800 as a sulfonamide anti-infective drug meeting Chapter 29 requirements for separate chemically defined compounds. Typically imported as sterile powder for injection or oral suspension.
Sulfathiazole Sodium
Sulfathiazole sodium combines sulfonamide antibiotic with thiazole ring for broad-spectrum antibacterial activity. HTS 2935.90.4800 classification as sulfonamide anti-infective per Chapter 29 note (C)(1) for organic salts. Used historically in wound dressings and systemic infections.
Succinylsulfathiazole
Succinylsulfathiazole is a poorly absorbed sulfonamide designed for intestinal infections, releasing active sulfathiazole locally. Classified HTS 2935.90.4800 as sulfonamide anti-infective per Chapter 29 ester classification rules. Used in ulcerative colitis and bacillary dysentery treatment.
Phthalylsulfathiazole
Phthalylsulfathiazole (Talinol) provides poor absorption for localized intestinal antibacterial action against Shigella and E. coli. HTS 2935.90.4800 as sulfonamide anti-infective ester per Chapter 29 classification notes. Hydrolyzed in alkaline intestine to active form.