Viagra is the world's most famous and effective impotence/ pulmonary arterial hypertension /ED (Erectile Dysfunction) treatment drug issued in a form of a pill for oral consumption.
Erectile Dysfunction is common among men of older age, a state when a man cannot achieve and/or keep an erection in his penis. The award-winning prescription ED treatment medicine "sildenafil citrate" is famous around the world under the brand name Viagra and is used to treat erectile dysfunction and improve men's sexual performance.
Viagra increases the blood flow in penile area and penis itself allowing men to achieve and sustain an erection for longer and more pleasant sex. It is a "when needed only" drug, which means you only take Viagra when you are planning to have an intercourse. It takes the pill 30-60 minutes to kick in and it fully works only in response to sexual stimulation, so you can actually take Viagra up to 4 hours before sex. This blue pill is known to help men at all stages of erectile dysfunction, but the needed dosage and effect may vary.
When you are done having sex your erection should go away as it does without the use of Viagra. If your erection lasts for more than 4 hours, you should immediately seek medical attention to avoid the possible negative effects of overtime erection.
