Sildenafil Citrate, the active ingredient in Malegra 100, belongs to a class of medications called phosphodiesterase type 5 (PDE5) inhibitors. It works by increasing blood flow to the penis during sexual stimulation, helping men achieve and maintain erections suitable for sexual activity. Malegra 100 typically starts working within 30 minutes to 1 hour after ingestion. Its effects can last for up to 4 to 6 hours, providing a window of opportunity for sexual activity. The onset and duration may vary among individuals. https://www.genericday.com/malegra-100-mg.html