Sufferers of ED or erectile dysfunction cannot retain or even achieve an erection as the blood flowing into the penis is not constant. Generic Viagra treats impotence by stimulating blood flow into the arteries of the penis. Of course, without sexual stimulation you will not be able to attain an erection as Generic Viagra is not an aphrodisiac. The effects of this ED medication can last for 4 hours, however only a single dosage in a span of 24-48 hours is prescribed by physicians.

Sildenafil should be taken on an empty stomach with a glass of water. It is not advisable to take Generic Viagra with alcohol or fatty foods. The interaction of the medication and alcohol in the body have not yet been fully studied, thus caution is required from users.

The most common side effects of taking Generic Viagra are mild headaches, flushing, indigestion and upset stomach. You will also experience blurred or bluish vision, and it will be hard to distinguish the colors, especially blue and green. There have been reported cases of light sensitivity amongst Sildefanil users. You must seek medical attention if the side effects do not subside within 4 hours. The erection should only last until after sexual intercourse. If this persists, contact your physician immediately.

Males who have suffered from stroke or heart attack should consult with their physician, as their hearts may not be healthy enough. If you are afflicted with a heart problem, kidney or liver problem, ulcer or bleeding disorder, it is best to consult with a doctor as the drug could further your illness.

Women and children are not advised to ingest Sildefanil. There have been not studies to support any adverse side effects allegedly reported by users other than males.

If you are currently taking nitrate medications, you should never take Generic Viagra. Your blood pressure may crash and it will result to dizziness, fainting spells and palpitations. Examples of nitrate drugs are nitroglycerine, isosorbide mononitrate and isosorbide dinitrate.

Patients taking other over the counter and prescription drugs must inform their physicians about the medications they are presently taking. If you are allergic to Sildenafil, do not take Generic Viagra.

Generic Viagra comes in 3 strengths - 25 mg, 50 mg and 100 mg. The normal prescribed dosage is 50 mg. As individuals react differently to Generic Viagra, your physician may prescribe 25 mg or 100 mg. Unless your doctor gives you a higher or lower dosage, you must abide by your doctor's approved dosage.

In the rare occasion that an overdose occurs, immediate medical attention should be sought. Loss of consciousness, nausea, chest pains, irregular heartbeats and lightheadedness are the most common symptoms of Sildefanil overdose.

Generic Viagra should be stored at room temperature in a closed container, away from direct sunlight.