•Sildenafil citrate (Brand Name : Viagra) is a drug used to treat erectile dysfunction.
•Sildenafil is a phosphodiesterase type 5 (PDE5) inhibitor. It works by helping to increase blood flow into the penis during sexual stimulation. This helps to achieve and maintain an erection during & after the sexual intercourse.
•Sildenafil increase blood flow in penis causes erection.. Sildenafil treats PAH by relaxing the blood vessels in the lungs to allow blood to flow easily.
•The primary indication of sildenafil is treatment of erectile dysfunction (inability to sustain a satisfactory erection to complete intercourse). Its use is now standard treatment for erectile dysfunction
Sildenafil dosage: •Sildenafil is available in the form of tablets to be taken orally once every 24 hours.
•The best time to take Sildenafil is 1 hour before sexual activity; Sildenafil can be taken any time from 30 minutes to 4 hours before the intercourse.
•It can be take with or without food.