Viagra is a very popular prescription pill available in the market for the treatment of impotence or erectile dysfunction (ED). It has been proven beneficial for millions of men worldwide. Viagra pills are also known as the blue pills.

Impotence is a common problem among men of all ages. In this condition, a man is unable to get and sustain an erection for satisfactory sexual activities.

How does Viagra work?

If you are suffering from impotence, you can find relief with Viagra. Sildenafil is the active ingredient in Viagra. It helps increase blood flow in the penis and allows you to get strong and hard erections. Sildenafil stops the breakdown of cGMP in the penile chambers. As cGMP builds up, the smooth muscles in the penis relax and the arteries dilate. Viagra needs to be taken 30-60 minutes before sexual intercourse and its effect usually lasts for 4 hours.

Viagra online

If you are shy about discussing this problem even with your partner, you can buy Viagra online. But you need a valid prescription. To get a prescription, you need to complete a short online consultation with registered doctors. A number of online clinics are offering you the blue pill, but make sure that you buy it only from an authorized clinic.

Viagra side effects

The most common side effects of Viagra include:

• facial flushing
• upset stomach
• nausea
• headache

These side effects are usually very mild and go away quickly. But in case they bother you for too long, talk to your doctor. If you experience chest pain during sex, stop taking Viagra and inform your doctor.