Erection Facilitation: The enhanced blood flow to the penis facilitates an erection when a man is sexually aroused. It does not cause spontaneous erections but helps in achieving and maintaining an erection in response to sexual stimulation.

Onset of Action: Cenforce 100mg sildenafil usually takes effect within 30 minutes to an hour after ingestion. The timing can vary based on individual factors such as metabolism, food consumption, and overall health.