Patent challenged

Last Updated: Saturday 04 July 2015

Eli Lilly and Company, manufacturer of the anti-depressant Prozac, is challenging Pfizer Inc, uk' s patents related to Viagra to clear the way for its own entry in the market. Derek Anthony, a spokesperson for Lilly, said his company was fighting a patent that Pfizer had on Viagra-like substances, used for treating sexual dysfunction. The case will come up in court sometime next year, he added.

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