Viagra

Viagra (sildenafil) is a prescription medicine that can be purchased without a prescription from some online drugstore if you are suffering from impotence and are unable to have sex. Viagra comes in three different dosages – 25, 50 and 100 mg. The numbers reflect how much of the active ingredient – sildenafil citrate – each tablet contains. In most cases patients that need to receive this kind of treatment for their erectile dysfunction are recommended to take this medicine when needed and the usual dose prescribed is 50 mg, although you may be started on a lower dose if there are certain health conditions that need to be taken into consideration. The following health condition may affect your dose and therefore need to be reported directly to your health care provider before you are prescribed this medication: stroke, blood circulation problems, leukemia, cavernosal fibrosis, diabetes, penis angulation, heart attack, irregular heartbeat, chest pain, pulmonary veno-occlusive disease, Peyronie's disease, bleeding disorder, multiple myeloma, high or low blood pressure, high cholesterol, heart, kidney, or liver disease, sickle cell anemia, or stomach ulcer. If there are any other conditions you thin may be of importance – report them as well, just make sure you do not keep any of the information of this kind to yourself to provide for the maximum efficiency of your treatment. Never share Viagra with other people and make sure you store it in some dark cool place where it will not be accessed by people to whom it was not prescribed. Viagra can be dangerous if misused as it can be associated with a number of serious, although rare, side effects. Since this drug is taken when needed you do not need to worry about a missed dose.