Viagra medicine is the trading name for the active drug Sildenafil Citrate, as distributed and sold by Pfizer across the world, as a proven effective treatment for the condition of ED, or erectile dysfunction, which occurs when a sufferer is sexually aroused yet simultaneously unable to achieve, or maintain, penile erection. Viagra is not to be confused with an aphrodisiac or a mood enhancer, since external stimulation and arousal is still required alongside the taking of Viagra medicine, in order to achieve an erection. But where a patient has either a single, temporary or even long term problem with flaccidity, despite these other criteria, Viagra has been hugely successful in combating the affliction. This is why Viagra has earned the nickname best blue pill.
This is because it acts directly upon the enzyme PDE-5, which is responsible for regulating and instructing blood flow away from the penis. The active ingredient in every Viagra tablet sold is called Sildenafil Citrate, which is a highly effective suppressant when reacting upon PDE-5; it is able to keep blood within the penile arterial system, rather than it being evacuated through the veins. Since an erection is caused by blood flooding the penis, the result is a more satisfactory erection, capable of allowing natural sexual intercourse.
Viagra medicine is usually sold in the form of the highly distinctive diamond blue tablets, marked with the dosage on one side, and the brand name of Pfizer on the other. This blue pill online is normally sold under the name Viagra or Sildenafil citrate. Depending on the amount a patient decides to purchase, it can be shipped in either bubble pack form, or bottle form, in one hundred milligram (mg) fifty, or twenty-five mg doses. Each tablet should be taken anywhere between thirty minutes to four hours before sexual activity is desired, so that it can then aid erectile performance for an average of up to two hours, alongside regular sexual stimulation and arousal. In rarer patient testimonials, it may also last as long as four hours.
In the fourteen years since it first came on the market in 1998, Viagra erectile dysfunction medication has become a socially acceptable drug, with benefits that also extend beyond erectile dysfunction. Other uses for Viagra medicine also include the treatment of the heart condition pulmonary hypertension, and it can also be used to treat altitude sickness.