Possible Side Effects Of Sildenafil

Sildenafil is a a drug used to treat erectile dysfunction.It helps to relaxes the smooth muscle of the penis and allow to increased blood flow and erection.This is an active ingredient of Viagra, which may help to produce erections.
But as like all drugs sildenafill also have some side effects.Some of them could be dangerous if you don't get treatment at right time.The possible side effects of sildenafil are::

• Sudden vision loss

• Sudden hearing loss

• Chest pain or heavy feeling

• Irregular heartbeat and shortness of breath

• Swelling in your hands, ankles, or feet.

• Penis erection that is painful or lasts 4 hours or longer.

• Itching, Unusual swelling, Severe dizziness, Trouble breathing ,these are the symptoms of a serious allergic reaction .

Although this is not a complete list of side effects and others may occur.
Cautions :: Before taking sildenafil, tell your doctor or pharmacist if you have any other allergies. Before using this medication, tell your doctor your medical history, especially of penis conditions.