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Sulfamethoxazole Trimethoprim Tablets 800/160 mg

Combination antibiotic tablets containing sulfamethoxazole and trimethoprim, used for treating urinary tract infections, bronchitis, and traveler's diarrhea. Classified under HTS 3004.90.92.11 as sulfonamide anti-infectives put up in measured doses for retail sale.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳ChinaFree+100.0%100%
🇲🇽MexicoFree+100.0%100%
🇨🇦CanadaFree+100.0%100%
🇩🇪GermanyFree+15.0%15%
🇯🇵JapanFree+15.0%15%

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

3003.39Lower: 12.5% vs 100%

If not put up in measured doses for retail sale

Bulk unmixed medicaments fall under Chapter 30 heading 3003 for medicinal chemicals not in dosage form.

2935.90Lower: 19% vs 100%

If imported as unmixed active pharmaceutical ingredient

Pure sulfonamide chemicals without therapeutic formulation are classified as organic chemicals in heading 2935.

3004.90Same rate: 100%

If classified as other antibiotic combinations

May shift if trimethoprim component dominates, treated as non-sulfonamide anti-infective.

Not sure which classification is right?

The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.

Import Tips & Compliance

• Verify FDA registration and provide Certificate of Analysis (CoA) confirming API purity and stability

• Ensure labeling complies with 21 CFR 201 for prescription drugs, including lot number and expiry date

• Avoid misclassification by confirming sulfonamide content; common pitfall is bulk powder import under 2935