Oseltamivir Phosphate Bulk Powder
Oseltamivir phosphate is a bulk antiviral medicament used primarily for the treatment and prophylaxis of influenza A and B viruses. It consists of mixed active pharmaceutical ingredients not in measured doses or retail packaging, qualifying under HTS 3003.90.0120 as an anti-infective antiviral for therapeutic use.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If imported as unmixed single API without excipients
Unmixed chemical intermediates or single APIs fall under Chapter 29 headings, not mixed medicaments of Chapter 30.
If put up in measured doses or retail packings
Retail-packed antivirals shift to heading 3004 for consumer forms like capsules or tablets.
If classified primarily as diagnostic reagent
Diagnostic-use preparations are excluded from Chapter 30 per chapter notes and go to heading 3822.
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
• Obtain FDA approval and Drug Master File (DMF) prior to import; antivirals require strict quality control documentation
• Verify Certificate of Analysis (CoA) for purity and stability; common pitfall is inadequate stability data for bulk APIs
• Declare exact composition to avoid reclassification; use bulk containers to confirm non-retail status
Related Products under HTS 3003.90.01.20
Zanamivir Bulk Active Substance
Zanamivir is a neuraminidase inhibitor antiviral in bulk form for manufacturing influenza treatments like Relenza inhalers. This mixed constituent product for therapeutic use is not retail-packed, fitting HTS 3003.90.0120 for antivirals.
Acyclovir Bulk Mixture
Acyclovir bulk mixture is an antiviral for herpes simplex and zoster treatments, consisting of mixed APIs and excipients for pharmaceutical formulation. Not in retail doses, it classifies under HTS 3003.90.0120 as a bulk antiviral medicament.
Valacyclovir Hydrochloride Bulk
Valacyclovir hydrochloride bulk is a prodrug antiviral mixed for herpes virus therapy, used in manufacturing tablets like Valtrex. As a non-retail mixed medicament, it falls under HTS 3003.90.0120 for antivirals.
Remdesivir Bulk API Mixture
Remdesivir bulk API mixture is an antiviral for COVID-19 and Ebola treatment, mixed for IV formulation production. Excluded from retail forms, it is classified in HTS 3003.90.0120 as a bulk antiviral.
Ganciclovir Bulk Powder
Ganciclovir bulk powder is an antiviral mixed for cytomegalovirus (CMV) treatment in immunocompromised patients. Not for retail sale, it qualifies under HTS 3003.90.0120 for bulk antivirals.
Ribavirin Bulk Mixture
Ribavirin bulk mixture is a guanosine analog antiviral for hepatitis C and RSV, blended for further processing. As a mixed, non-dosed product, it is under HTS 3003.90.0120.