The main active ingredient, which is part of Viagra, is Sildenafil Citrate. Viagra refers to a group of drugs used to treat erectile dysfunction referred to as male impotence. With sexual stimulation, a substance such as - nitric oxide is released in the human body, which positively affects the relaxation of smooth muscles, which in turn leads to an increase in blood flow to the penis, which inevitably leads to an erection. In the same way works and Viagra, positively affecting the increase in the body of nitric oxide, thereby triggering the reaction to achieve an erection. However, initially the drug was intended for the treatment of pulmonary arterial hypertension. But during the testing, a side effect was revealed, which later became the main effect of using Viagra. The manufacturer recommended dose, obtained during testing, was 50 mg. But because of the differences in the processes in the body of each person, this amount can be reduced to 25 mg, or increased to 100 mg at a time. The drug should be taken in half or one hour before sexual activity. Everything depends on the individual effect of the drug on the body. It is not recommended to take the drug more than once a day to avoid overdose or side effects. During the intake of the drug should not eat grapefruit, or its juice. Since it can significantly affect the effect of the drug.
Viagra should not be used by people suffering from such diseases as:
Side effects that may occur during the reception of the vagra may be as follows:
If after taking the drug you have any of the above side effects, you should immediately stop taking the drug and immediately seek medical help from a specialist or your doctor. Viagra is used as needed, so the time you take the drug you choose yourself. Keep the drug out of reach of children, away from light and moisture, at temperatures from 15 to 30 degrees C (59 and 86 degrees F). Information provided to you is of a general nature can not be used for self-treatment and self-diagnosis. Before using the drug, you should consult your doctor. We are not responsible for any direct, indirect, special or other indirect damages as a result of any use of information on this site, nor for the consequences of self-treatment.