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Sildenafil is most commonly prescribed to be taken one time per day in doses between 25 and 100 mg for ED. Your healthcare provider will determine the best dosage for you based on a number of factors.
Generic sildenafil (and brand-name Viagra) is a medication for the treatment of ED, Raynaud’s phenomenon, and pulmonary arterial hypertension. To understand how Viagra works, we need to look at ...
Like other prescription medicines, Viagra and its generic form, sildenafil, work best when you take them under the right conditions. Like other prescription medicines, Viagra and its generic form ...
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]
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.
Viagra (or sildenafil) lasts three to five hours after it’s consumed. Cialis (tadalafil) has a half-life of 17.5 hours, meaning this drug lasts up to 36 hours after it’s consumed.
[10]: 20–21 As of 2018, sildenafil is available in the UK without a prescription. [54] Additionally, a cream combining alprostadil with the permeation enhancer DDAIP has been approved in Canada as a first line treatment for ED. [55]
Sildenafil is the active ingredient in Viagra, meaning you’ll need to take the same precautions while drinking if you opt for generic sildenafil over brand-name Viagra. ... (defined as one to 20 ...
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