Kamagra 100mg is often used to treat erectile dysfunction (ED), which means having trouble getting or keeping an erection long enough for sexual action. Kamagra 100mg can help people with ED get and keep an erection by increasing blood flow to the penis. This can make it easier for them to have sexual encounters and maybe even keep a sexual partner. It has sildenafil citrate in it, which blocks the enzyme phosphodiesterase type 5 (PDE5). This makes more blood flow to the penis when you're sexually aroused. But it's important to only use Kamagra 100mg as your doctor tells you to and to be aware of any possible side effects or situations where you shouldn't use it.