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Viagra

Viagra

Brand Names

Revatio, Viagra

What is Viagra

Viagra (sildenafil) is a prescription medicine that treat erectile dysfunction by blocking a chemical that causes blood to flow out of the penis. More blood in the penis means an improved erection.

Side effects of Viagra

The most common side effects identified in patients taking Viagra included:

Dizziness
Visual disturbances such as blurred vision, blue tinge to vision
Flushing
Nasal congestion
Indigestion
Headache
Awareness of your heart beat (palpitations)
Increased heart rate (tachycardia)
Chest or muscle pain
Sleepiness or fatigue
Decreased sensation of the body to normal stimulation such as touch or pain
Sensation of spinning
Sensation of ringing or other noise in the ears (tinnitus)
Feeling sick or vomiting
Dry mouth
Rash
Eye disorders such as bleeding at the back of the eye, bloodshot eyes/red eyes, eye pain, double vision, abnormal sensation in the eye

Indication

Viagra is used to treat impotence in men. This drug does not protect against sexually transmitted diseases (such as HIV, hepatitis B, gonorrhea, syphilis). Sildenafil is also available in other strengths for treating high blood pressure in the lungs (pulmonary arterial hypertension).

Precautions

You should not take Viagra if you have heart disease or blood vessel disease; liver disease or liver failure; a history of a heart attack, stroke or life-threatening arrhythmia within the past 6 months and retinitis pigmentosa.

Taking Viagra for people with low blood pressure (hypotension) or high blood pressure (hypertension) is not recommended.

Do not use this medicine if you have sickle cell anemia; multiple myeloma; leukemia; a history of priapism, which is a painful erection lasting longer than 6 hours; any condition that causes a penis deformation (angulation, Peyronie's disease or cavernosal fibrosis) and any allergies.