Viagra (Sildenafil) is an oral drug with powerful erectogenic properties and more than 20 years of safe use in patients with erectile dysfunction (ED) of varied etiologic, severity and age groups. Viagra use is restricted to men suffering from problems with sexual potency, and is not intended to increase sexual drive or desire.

Generic Viagra is a drug from the class of PDE5 (phosphodiesterase type 5) inhibitors that are used to eliminate the symptoms of erectile dysfunction. Sildenafil formula was the first in its class, followed by four other molecules available today, but despite the tough competition, Viagra Canada Pharmacy from Rx Drugs Canada pharmacy firmly holds its position as a safe and reliable erectile enhancement.

Generic Viagra (Sildenafil) is used to treat male sexual function problems (impotence or erectile dysfunction-ED). In combination with sexual stimulation, Sildenafil works by increasing blood flow to the penis to help a man get and keep an erection. To treat erectile dysfunction, take this drug by mouth as directed by your doctor, usually as needed. Take Sildenafil at least 30 minutes, but no more than 4 hours, before sexual activity (1 hour before is the most effective). Do not take more than once daily.