Kamagra is a medication to treat erectile dysfunction in men. This is an analog version of Viagra, or sildenafil citrate, which is used for treatment of sexual dysfunction in men. The active ingredient is Sildenafil. One tablet contains Sildenafil citrate in an amount corresponding to 25 mg, 50 mg or 100 mg of Sildenafil.

Sildenafil tablet is drug that dilating blood vessels of the penis and helping to achieve an erection. It is significant to note that an erection happens only when sexually stimulates. As for the mechanism of achievement of Kamagra, it is to increase the quantity of blood streaming into the penis, which assists a man to call a normal erection. In other words, Sildenafil citrate works only on natural mechanisms of erection.

This medication easily can be found in local pharmacies, drug stores and web sites that provide pills online. 

Each variant of purchasing has own benefits and weak sides.

There are hundreds of cases when people bought Kamagra or any other similar medicine through Internet pharmacy, without asking advice of doctor and get unpredictable reaction.  The list of possible side effects include headache, diarrhea, dizziness, upset stomach, vomiting, nasal congestion, prolonged erection. These are soft types of them, for example, overdose could cause blurred vision, difficulties with blood pressure, stroke or even heart attack, and death.

Kamagra usage is not recommended to be done along with the nitrate containing drugs because the combination may result into sudden lowering of blood pressure, which later leads to the cardiac arrest or even coma.

So, online purchasing can be not so ideal. Online services may bring more problems than advantages. Not asking for professional consultation, people take amount think will help them and do not care about personal characteristics, history of illnesses and so on. 

Every time when you are intend to take some new preparation you should first consult with your doctor. Personal characteristics have big influence on choice of treatment. 

If you want to get result you will have to spend more time and forces to achieve wellness. Online pharmacies have only half of success. They uncountable have high quality drugs, but they cannot give full volume of safety and convenience, and sometimes, you cannot say surely, what is more important.

To find out the problem is only first step. To prescribe correct treatment also plays important role. Wrong treatment or treatment with help of unsuitable meds can bring even more harm than it was.