Kamagra is a medication used to treat erectile dysfunction. It contains the active ingredient Sildenafil, which is a type of drug called phosphodiesterase. This medication works by increasing blood flow to the penis, resulting in an erection when sexually stimulated. The active ingredient Sildenafil Citrate has been used for years in medications such as Viagra. Kamagra comes as both a soluble tablet and an oral jelly form and can be taken with or without food. Each pill contains 100 mg of the active ingredient sildenafil, which is the same amount found in Viagra tablets.