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
9903.05.860%Universal product exemption (U.S. note 52(b))
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