1. Viagra — 2017-06-01 14:56:53

   …ll, Brown and Terrett 1991 === In 1991, inventors **Andrew Bell**, **Dr David Brown** and **Dr Nicholas Terrett** (also Pfizer employees at [[Kent]] [[England]]) discovered that chemical compounds belonging to the pyrazolopyrimidinone class were …
   …pill didn't pan out as an effective treatment for angina but still showed promise in the area of hypertension. Instead, Pfizer decided to market the drug as an erectile enhancer. Wood and Dunn established the process to turn it into a pill and pr…
   …ngland are named as the inventors of the process by which Viagra was created. Their names appeared on an application by Pfizer to patent (WOWO9849166A1) the manufacturing process of Viagra or its [[Medical]] name, Sildenafil Citrate.…

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