Kamagra 100 mg is a medication used to treat erectile dysfunction (ED) in men. It contains sildenafil citrate as its active ingredient, which belongs to the class of drugs known as phosphodiesterase type 5 (PDE5) inhibitors. Sildenafil works by increasing blood flow to the penis, facilitating an erection when a man is sexually aroused.The active ingredient in Kamagra 100 mg is sildenafil citrate. It functions by inhibiting the PDE5 enzyme, leading to increased levels of cyclic guanosine monophosphate (cGMP). This process relaxes smooth muscles and increases blood flow to the penis, aiding in achieving and maintaining an erection.