Viagra For Sale

Viagra on sale is being marketed and was developed by Pfizer pharmaceutical company. It acts by inhibiting the selective phosphodiesterase type 5 enzymes which regulates blood flow to the penis

Viagra acts by inhibiting the action of cyclic GMP specific phosphodiesterase type 5 in the corpus cavernosum in the penis and thereby protect the degradation of the cGMP in the penis. This causes vasodilatation and increased blood supply to the penis causing erection.

The uses of Viagra are in sexual dysfunction called erectile dysfunction, in pulmonary artery hypertension, altitude sickness and in sports.

The non medical uses are in recreational use where in Viagra has been used even by youngsters. Here it is believed to increase libido, and improve sexual function. It available as non prescription Viagra.

Its use in treating jet lag is under trial.

Viagra now in sale is blue in color. It is a diamond shaped pill. It is marketed by Pfizer in the doses of 25 mg, 50 mg and 100 mg. The dose of Viagra in erectile dysfunction is 25 to 100 mg used as a single daily dose. In the pills marketed by Pfizer, the name Pfizer is engraved on one side and the letters VGR 25, 50 or 100 are engraved on the other side.

The dosage of Viagra in pulmonary artery hypertension is 20 mg tablet thrice daily.

The contraindications of Viagra are patients on nitrate drugs like nitroglycerine, sodium nitroprusside and isosorbide mono or dinitrate, heart disease patients, renal disease patients, recent stroke and patients with hepatic failure.

Side effects are nausea, vomiting, dizziness and headache.