Zanamivir is an influenza viral neuraminidase inhibitor with IC₅₀ values of 0.95 nM and 2.7 nM for influenza A and B, respectively.

Solid

IC50: 0.95 nM (Influenza A); 2.7 nM (Influenza B)

Zanamivir interacts with a group of amino acids in the active site of neuraminidase, which are conserved in all influenza A and B strains. Zanamivir blocks the action of neuraminidase, which prevents the cleavage of sialic acid on the cell receptors, thus preventing release and spread of the newly formed virions.

Medlife has not independently confirmed the accuracy of these methods. They are for reference only.

Zanamivir has a poor bioavailability in oral administration, with only 4–17% of the agent. Oral delivery of zanamivir has been a problem due to its strong hydrophilic nature that limits its transport across the intestinal epithelium. Permeation enhancers such as sodium cholate, hydroxypropyl β-cyclodextrin could be used with zanamivir to enhance the intestinal permeability.

Medlife has not independently confirmed the accuracy of these methods. They are for reference only.

Room temperature or refrigerated transportation.

• [1]. Gubareva LV, et al. Comparison of the activities of zanamivir, oseltamivir, and RWJ-270201 against clinical isolates ofinfluenza virus and neuraminidase inhibitor-resistant variants. Antimicrob Agents Chemother. 2001 Dec;45(12):3403-8.  [Information]

  [2]. McKimm-Breschkin JL, et al. Management of influenza virus infections with neuraminidase inhibitors: detection, incidence, and implications of drug resistance. Treat Respir Med. 2005;4(2):107-16.  [Information]

  [3]. Shanmugam S, et al. Zanamivir oral delivery: enhanced plasma and lung bioavailability in rats. Biomol Ther (Seoul). 2013 Mar;21(2):161-9.  [Information]

产品不同，其溶解度不同。建议根据产品选择合适的溶剂配制储备溶液；配成溶液后，建议分装保存，避免反复冻融造成的产品失效。
储备液的保存方式和期限：-80°C, 6 months; -20°C, 1 month。-80°C 储存时，建议在 6 个月内使用，-20°C 储存时，建议在 1 个月内使用。