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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]
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. Whether you use ...
It depends who you ask. One of the main reasons people consider Cialis to be “better” than Viagra is that Cialis lasts longer. Cialis can last for up to 36 hours per dose, whereas a single ...
Research shows that, when used properly, these ED pills can help improve function. Many of these pills work fairly quickly. Sildenafil (Viagra), tadalafil (Cialis) and vardenafil (Levitra ...
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 ...
Tadalafil, sold under the brand name Cialis among others, is a medication used to treat erectile dysfunction, benign prostatic hyperplasia, and pulmonary arterial hypertension. [ 5][ 6][ 8] It is taken by mouth. [ 8] Onset is typically within half an hour and the duration is up to 36 hours.
High-Fat Meals. First, you can take Viagra with or without food.. However, a heavy or high-fat meal can block the absorption of the active ingredient in Viagra (sildenafil citrate) and can make ...
Teva Canada launched Novo-Sildenafil, a generic version of Viagra, on the day the Supreme Court of Canada released its decision. [5] [21] [22] On August 5, 2014, the Supreme Court of British Columbia certified a class action against Pfizer.