Zanamivir Bulk Active Substance from Japan

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.

Duty Rate — Japan → United States

0%

Rate breakdown

9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter

Import Tips

Comply with FDA import alerts for antivirals; provide GMP certification from manufacturer

Ensure cold chain documentation if required for stability; avoid temperature excursion pitfalls

Label as 'for further manufacturing' to prevent retail misclassification