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Viagra®, is used to treat men who have difficulty having and maintaining an erection. This condition is known as impotence or erectile dysfunction. If the nerves or blood vessels associated with this process are not working properly, a man may not be able to get an erection. Viagra® increases blood flow to the penis, so that when a man becomes sexually aroused, he can achieve and maintain an erection. When the sexual encounter is over, the erection goes away |
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