Sildenafil citrate is an oral medication used to treat male erectile dysfunction (ED) and pulmonary arterial pulmonary hypertension (PAH). It belongs to a class of drugs known as phosphodiesterase type 5 (PDE-5) inhibitors. Due to problems with ED, men cannot achieve or maintain an erection during intercourse.

Sildenafil citrate helps to relax the muscles present in the walls of blood vessels and increases blood flow to certain areas of the body. The enzyme PDE-5 narrows the arteries and interferes with blood flow.

For an erection to occur, the penis must be filled with blood. A molecule known as cGMP is involved in vasoconstriction and dilation. He carries a penis and blood. The PDE-5 enzyme stops the production of cGMP and does not cause an erection. Sildenafil citrate blocks the action of PDE 5 and promotes the production of cGMP.

This promotes blood flow to the penis. As more and more blood enters the penis, an erection is achieved. However, this drug does not increase sexual activity or give you an orgasm. For a drug to work properly, it must stimulate the person sexually.

This drug is sold under the brand name Viagra in various dosages including 50mg, 100mg, 120mg, 150mg and 200mg. Common versions of this drug include

• Cenforce 100
• Fildena 150
• Kamagra 100
• Aurogra 100
• Malegra 100
• Zenegra, and others.

This is due to the fact that it takes from 30 minutes to an hour to completely dissolve the drug in the bloodstream. For best results, it is recommended to take the medicine on an empty stomach. The effect of this drug lasts 4-5 hours. Carefully follow your doctor’s prescription and read the instructions on the medication leaflet.