Viagra is a very common drug prescribed for treating erectile dysfunction. It works by enhancing the flow of blood to the penis during sexual intercourse to bring about erection. Viagra actually contains the active ingredient Sildenafil Citrate which is a selective inhibitor of Cyclic Guanosine Monophosphate (cGMP)-specific phosphodiesterase type 5 (PDE5).
This drug works efficiently with sexual stimulation. Erectile dysfunction is very common among older men whose sexual function tends to fall after they reach their 50s. But these days even younger men in their 30's and 40's are experiencing an increased incidence of erectile dysfunction.
Doctors can even recommend the drug to both younger and elder men who suffer from erection problems.
Solidification of the arteries, the blood vessels that supply blood to the penis, can occur during the teen years. The problem then develops by the time they reach the age of 20-30 years and more, hindering their ability to get and maintain an erection. Men suffering from diabetes and facing the problem of Erectile dysfunction can be assisted by this drug.
The drug should be ideally taken an hour before the sexual intercourse.
On the other hand, you can also take Viagra half an hour to 4 hours before the sexual intercourse. You don't require having food in order to take the drug. But you need to keep in mind that if you take it after a meal high in fats, it can take a little bit longer for you to experience its effects.
Related Tip: Erectile Dysfunction and Premature Ejaculation - How Are They Related?