Cobra Tablets (Sildenafil )

What is sildenafil used for?

Sildenafil is commonly used for the following conditions.

• Erectile dysfunction, a condition where you have trouble getting or keeping an erection
• Pulmonary arterial hypertension, a condition where you have high blood pressure in the blood vessels that carry blood from your heart to your lungs

Sildenafil may also be used for other conditions as determined by your healthcare provider.

How does sildenafil work (mechanism of action)?

Sildenafil works by blocking an enzyme in the body called PDE5, which helps relax certain blood vessels. For erectile dysfunction, it increases blood flow to the penis when aroused. This makes it easier to get and keep an erection. For pulmonary arterial hypertension, sildenafil relaxes the blood vessels in the lungs. This lowers blood pressure and reduces strain on the heart.

How is sildenafil supplied (dosage forms)?

Brands and other names

• Viagra
• Revatio

Dosage forms and strengths