Viagra.

Viagra (sildenafil) is a prescription PDE5 inhibitor often prescribed for the treatment of male impotence. It is not supposed to be take by females and can be used only by men to whom it was prescribed. Viagra is by far most popular anti-impotence treatment famous in the world that comes as a blue diamond-shaped pill in different dosages. Viagra is supposed to be taken about 40-50 minutes before planed sexual activity and you are supposed to get some sexual stimulation for this medicine to work. To make sure to treatment is efficient always take Viagra as recommended. Each dose of Viagra is supposed to be taken with a full glass of water making sure you do not keep in inside you mouth for too long and swallow it immediately. This is the best way to make sure you will get all the benefits of the treatment. Your dose may be increased or decreased based on your reactions to this medicine, but make sure you do not take more than recommended based on your own judgment. Viagra is usually tolerated very well and just a few mild side effects re usually experienced, such as memory problems, upset stomach, stuffy nose, headache, and back pain. However, you will need to report immediately any of the following serious side effects that are rare but nevertheless possible: vision changes, priapism, irregular heartbeat, sudden vision loss, chest pain, and excessive sweating.