The active ingredient in Kamagra Effervescent is sildenafil citrate, which is used to treat erectile dysfunction. More blood can enter the penis when using Kamagra Effervescent, just as it would normally when a man is sexually stimulated. An effective and well-liked remedy for erectile dysfunction is Kamagra Effervescent. These effervescent tablets start working quickly and are simple to swallow. Four to six hours is the effective treatment time. Aim to avoid eating a big or fatty meal right before taking your prescription. It is not known if kamagra is safe or effective for use in younger patients under the age of 18.