Kamagra is commonly used to treat erectile dysfunction in men. Containing the active ingredient sildenafil citrate, which works by dilating the blood vessels in the penis, allowing for increased blood flow and resulting in an erection. Kamagra is available in Canadian through online pharmacies and can be purchased with a prescription from a registered healthcare provider. Kamagra Canada Importantly, however, to solely purchase Kamagra from reputable sources to ensure the safety and efficacy.