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We don’t want to point any fingers, but one reason Viagra may not work for you is because you’re not taking it correctly. Here’s where you could be going wrong: You’re trying to have sex ...
If Viagra doesn’t work for you the first time you use it, don’t panic. Try taking Viagra the next time you plan to have intimacy and see if you’re more relaxed and able to stay hard.
Viagra usually starts working 30 to 60 minutes after taking it. But simply swallowing the little blue pill won’t automatically make you hard — you still have to be aroused, either through ...
In 2000, Viagra sales accounted for 92% of the global market for prescribed erectile dysfunction pills. [77] By 2007, Viagra's global share had plunged to about 50% [78] due to several factors, including the entry of Cialis and Levitra, along with several counterfeits and clones, and reports of vision loss in people taking PDE5 inhibitors.
If your 50 mg dose doesn’t work, you might be wondering if you can take two 50 mg Viagra in one day. ... If you’ve taken two Viagra in one day, you probably don’t need to rush off to the ...
Chemical structure of sildenafil (Viagra), the prototypical PDE5 inhibitor. A phosphodiesterase type 5 inhibitor (PDE5 inhibitor) is a vasodilating drug that works by blocking the degradative action of cGMP-specific phosphodiesterase type 5 (PDE5) on cyclic GMP in the smooth muscle cells lining the blood vessels supplying various tissues.
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