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Viagra is one of the most popular medications used in case of erectile dysfunction. It is effective in many kinds of male impotence and possesses long history of successful usage all over the world. It works by increasing the blood flow into the penis. It stimulates natural erection enough for sexual activity.

Before you start taking Viagra please read carefully the label and additional medication leaflet. If you are not sure whether Viagra is safe for you talk to your pharmacist. Viagra may represent a threat for the health of certain types of patients. Discuss with your doctor the safety of Viagra usage in your condition. It concerns men who suffer from heart diseases. Sexual activity may be contraindicative for you due to high cordial risk. Medications used for heart therapy (eg. nitrates) may not be taken with Viagra. That may cause sudden decrease in blood pressure and lead to heart attack. Inform your healthcare provider about all the medications taken by you at the moment.

Usual dose of Viagra is 1 pill a day. You should wait 24 to pass between doses to avoid overdose. Tell your healthcare professional if you suffer from any kind of allergy. Also it is important to inform your doctor if you have serious heart problems, high blood pressure, liver or kidney diseases, or ulcer. Contact your doctor to find out more.