Встроенное видео How Viagra Works. by. How does Viagra do that? And why does Viagra work only if the man is sexually stimulated? For that matter. How Quickly Does Viagra Work?. Viagra worked well in producing well another HARD erection for us that night. I started with 50 mg. Do the New Erectile-Dysfunction Drugs Work as Well as Viagra?
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Decline in erectile function for every decade increase in age: 12. Decline in erectile function for every 20 pounds of weight gain: 3. Price of a single Viagra pill in the U.S.: 9-10. Sources: Viagra studies; Pfizer Inc. Absolutely nothing. Pfizer Inc., the maker of Viagra, long has said the drug isn't an aphrodisiac, but.