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Pfizer hit by Viagra patent expiration

30-07-2014

Pfizer hit by Viagra patent expiration

Sean Nel / Shutterstock.com

The expiration of US pharmaceutical company Pfizer’s patent for Viagra in many European countries was a contributing factor to the drop in revenue that it reported yesterday (July 29) when releasing its second-quarter earnings data.


Pfizer, Viagra, patent

WIPR

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