Cenforce 200 is a medication commonly used to treat erectile dysfunction (ED), a condition where a man struggles to achieve or maintain an erection sufficient for sexual activity. Its active ingredient is sildenafil citrate, which belongs to a class of drugs called phosphodiesterase type 5 (PDE5) inhibitors.

When a man is sexually stimulated, nitric oxide is released in the erectile tissue of the penis, which activates an enzyme called guanylate cyclase. This enzyme increases levels of cyclic guanosine monophosphate (cGMP), leading to relaxation of smooth muscles in the blood vessels of the penis and increased blood flow, resulting in an erection. However, in men with ED, the enzyme phosphodiesterase type 5 (PDE5) breaks down cGMP too quickly, inhibiting adequate blood flow and causing difficulty in achieving or maintaining an erection.

Cenforce works by inhibiting PDE5, thereby allowing cGMP to accumulate and promoting increased blood flow to the penis, which helps in achieving and sustaining an erection. It typically starts working within 30 to 60 minutes after consumption and can last for up to four hours. However, it's important to note that Cenforce is not an aphrodisiac and requires sexual stimulation to be effective.