Common use
The main component of Zenegra is Sildenafil.
Sildenafil affects the response to sexual stimulation. It acts by enhancing smooth muscle relaxation using nitric oxide, a chemical that is normally released in response to sexual stimulation. This smooth muscle relaxation allows increased blood flow into certain areas of the penis, which leads to an erection.
Sildenafil is applied for the treatment of erectile dysfunction (impotence) in men and pulmonary arterial hypertension.
Sildenafil may also be used for other purposes not listed above.

Dosage and direction
It is taken by mouth with a glass of water approximately 0,5-1 hour before sexual activity. Zenegra should not be taken more than once a day.
A high fat meal may delay the time of the effect of this drug.
Try not to eat grapefruit or drink grapefruit juice while you are being treated with Sildenafil.

Precautions
Before you start taking Sildenafil, tell your doctor or pharmacist if you are allergic to it; or if you have any other allergies.
Aged people may be more sensitive to the side effects of the drug.

Contraindications
Zenegra is contraindicated in patients taking another medicine to treat impotence or using a nitrate drug for chest pain or heart problems.
This medicine should not be taken by women and children as well as in patients with a known hypersensitivity to any component of the tablet.