Kamagra 100 mg is a medication used to treat erectile dysfunction (ED) in men. It contains the active ingredient Sildenafil citrate, which belongs to a class of medications known as phosphodiesterase type 5 (PDE5) inhibitors.Sildenafil citrate works by increasing blood flow to the penis during sexual stimulation, which helps to achieve and maintain an erection. Kamagra 100 mg is typically taken orally, with or without food, about 30 minutes to 1 hour before anticipated sexual activity.