The primary condition that Kamagra pills or tablets are used to treat is male erectile dysfunction (ED). Kamagra's primary ingredient, sildenafil citrate, is a member of the class of drugs known as phosphodiesterase type 5 (PDE5) inhibitors. To help men get and maintain an erection during sexual stimulation, it increases blood flow to the penis. Under a doctor's guidance, Kamagra is meant to be used orally. The best pricing on Kamagra can be found online with a prescription from a doctor.