The Conversation

Weekly dose: the hard facts on Viagra

Author: The Conversation USA

Viagra was discovered by accident when participants in a study looking at a treatment for high blood pressure reported an interesting side effect.Felix E Guerrero/Flickr, CC BY-SA

Viagra is one brand name of a drug that is used to treat erectile dysfunction (impotence): the inability to get, and maintain, an erection. It is also used in the...

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