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Sildenafil, sold under the brand name Viagra among others, is a medication used to treat erectile dysfunction and pulmonary arterial hypertension. [4] [8] It is also sometimes used off-label for the treatment of certain symptoms in secondary Raynaud's phenomenon. [9]
Here’s a list of both the half-lives and duration of action for four of the most common ED drugs (PDE5 inhibitors): Viagra (or sildenafil) lasts three to five hours after it’s consumed.
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.
Sildenafil’s role as a PDE5 inhibitor might help prevent the thickening of heart muscles, a feature that makes it difficult to pump blood. Viagra has also shown real promise for increasing the ...
If you struggle with ED, drugs like Viagra®, sildenafil, tadalafil, and other FDA-approved medications could help with your performance. But if you’re not prescribed one of these meds, taking ...
Dr. Fox is an online clinic launched in January 2010 by Tony Steele and Dan Broughton. The service is owned by Index Medical Ltd and was the first UK online consultation service to allow patients to check their eligibility for treatment without first completing a registration process.
How to Use Viagra for Best Results. Viagra is great as an ED treatment, but taking it in particular conditions can make it even more effective. To get the best results from Viagra when treating ...
This list may not reflect recent changes. A. ... Methyltestosterone; P. PF-00446687; PL-6983; Prostaglandin E1; S. Sildenafil; T. Tadalafil; Testosterone (medication ...