The Viagra phenomenon
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“Before I took part in the study I was heavily depressed. I was continually arguing with my wife and generally making life hell for her and my children…entering the study saved our family from much grief
… it probably saved my marriage and possibly my life.”
Patient during Viagra trial
Since gaining its license in 1998, there have been over 10 million prescriptions worldwide for Viagra.
All of this from a medicine that started life as an angina treatment but had some unusual side effects.