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The chambers also wmen a network of blood vessels. When those blood vessels relax and widen, blood rushes in. The resulting pressure is what causes an erection. PDE-5 can dampen the effect of cGMP. Viagra works by male refractory period viagra for women PDE-5. Viagra is rapidly absorbed into the bloodstream. Maximum concentrations are reached within an hour.

Use ribavirin regularly to get the most benefit. Get your prescription refilled before you run out of medicine completely.

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Internal Medicine--practice all of internal medicine, all ages, family, health, prevention, complementary medicine, etc.

Erectile dysfunction (ED) can be caused by both physical and psychological conditions. Achieving an erection is a complex process that involves signals from the brain, the male sex hormone testosterone, a functioning nervous system, and healthy vascular tissue in the penis. Erectile dysfunction can be caused by factors that are medical, physical, or psychological. This can include three main problems: - Insufficient blood flow to the penis.

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