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This prescription drug is taken as needed to get and maintain hard during intimacy. ... Generic sildenafil (and brand-name Viagra) is a medication for the treatment of ED, Raynaud’s phenomenon ...
According to the Food and Drug Administration (FDA), it usually takes 30 to 60 minutes for Viagra or generic sildenafil to start producing a noticeable improvement in your climax quality.
You shouldn’t take Viagra for fun. Brand-name ED drugs like Cialis (tadalafil), Levitra(vardenafil), Stendra and others that are FDA-approved to treat ED are also not safe to use without medical ...
Sildenafil's brand name, Viagra, is widely recognized in popular culture, and the drug's association with treating erectile dysfunction has led to its recreational use. [33] The reasons behind such use include the belief that the drug increases libido, improves sexual performance, [ 33 ] or permanently increases penis size. [ 34 ]
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.
From or to a drug trade name: This is a redirect from (or to) the trade name of a drug to (or from) the international nonproprietary name (INN). When appropriate, protection levels are automatically sensed, described and categorized.
Viagra and Revatio are the drug’s brand names. Viagra doses range from 25 to 100 milligrams (mg). A typical starting dose of Viagra or sildenafil dosage is 50 milligrams.
Vardenafil's indications and contraindications are the same as with other PDE5 inhibitors; it is closely related in function to sildenafil citrate (Viagra) and tadalafil (Cialis). The difference between the vardenafil molecule and sildenafil citrate is a nitrogen atom's position and the change of sildenafil's piperazine ring methyl group to an ...