What is Viagra ?

Viagra is extremely popular as a drug that aids in the treatment of erectile dysfunction. It is so popular that almost everyone knows about its uses and effects. Since its introduction in the year 1998, many companies have produced counterfeit Viagra pills, claiming their authenticity. This was done to such an extent that it had led to the creation of Viagra jokes in popular culture.

Whatever its context, the blue little pill, as it is fondly known, works when you want it to work and causes a sexually stimulated man to obtain an erection. If you are wondering as to how this is made possible by Viagra, or why Viagra works only when the individual is sexually stimulated, then you should learn about the functions of the pill. The technology that is involved in the functioning of Viagra is that of our human body as well as the methods which scientists use for controlling the different parts of our body with the help of drugs. It all starts with the male penis.

About Viagra

Viagra is also known by its scientific name which is sildenafil citrate, although there are other trade names under which the product is sold. The drug is used in the treatment of erectile dysfunction as well as PAH or pulmonary arterial hypertension. Viagra had originally been created by scientists in Britain and launched in the market by Pfizer, the pharmaceutical company based in the US.

The basic function of Viagra is to act by preventing the enzyme cGMP-specific phosphodiesterase type 5 which delays cGMP degradation. cGMP is said to regulate the flow of blood in the male penis. Since its availability in the year 1998, sildenafil has come to be regarded as the main source of treatment for different conditions of erectile dysfunction. Levitra and Cialis are the main competitors of Viagra.

Sildenafil citrate or Viagra is often considered as a wonder drug because it starts working by relaxing your body’s muscles as well as enhancing the flow of blood to certain regions of the body. Viagra is primarily used in the treatment of erectile dysfunction in men, and at times it is administered for the correction of pulmonary arterial hypertension for men as well as women.

There are a lot of online pharmacies that sell Viagra, but before placing your order, you should opt for one that is reliable and will not dupe you with an artificial product. There are stores which sell Viagra at a very cheap rate, whereas others quote expensive prices.

Precautions before Taking Viagra

Before taking Viagra, you must abide by certain precautions so as to prevent any side effects. If you are a patient who is on protease inhibitors which help in the cure of HIV, you should be careful as Viagra might lead to reactions. Protease inhibitors prevent the effects of metabolism of sildenafil, which multiplies their plasma levels. This is why patients who are taking protease inhibitors should restrict their usage of sildenafil and take only 25 mg doses each 48 hours. Other side effects may include low blood pressure.

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