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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 ]
The Best ED Medication for Men: Pros & Cons of Top ED Pills. Over the last 25 years, (ED) medications like Viagra and Cialis have become common fixtures in bedrooms around the world.
What Was Sildenafil Used for Originally? Since 1998, the Pfizer-created drug sildenafil citrate has been a reliable treatment for the management of ED.
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.
Boston Medical Group is a network of medical offices sharing research information and treatment methods for erectile dysfunction and premature ejaculation.. The company opened its first office in Mexico in Guadalajara, Jalisco on 4 July 1997. [1]
Medication costs can be the selling price from the manufacturer, that price together with shipping, the wholesale price, the retail price, and the dispensed price. [3]The dispensed price or prescription cost is defined as a cost which the patient has to pay to get medicines or treatments which are written as directions on prescription by a prescribers. [4]
How Much Does Cialis vs. Viagra Cost? The price per dose of Viagra is higher than Cialis. Viagra ranges from $86 to $116 a pill. Meanwhile, Cialis is more like $15 to $83 per dose, depending on ...
Sildenafil and vardenafil inhibit PDE6, an enzyme found in the eye, more than tadalafil. [23] Some sildenafil users see a bluish tinge and have a heightened sensitivity to light because of PDE6 inhibition. [24] Sildenafil and vardenafil also inhibit PDE1 more than tadalafil. [23] PDE1 is found in the brain, heart, and vascular smooth muscle. [23]