Kamagra tablet contain sildenafil as an active ingredient which is used to treat men suffering from erectile dysfunction and impotence. So this medicine helps men to get erect for a long time with their partner. This medicine should be taken with 1 glass of water. This medicine should not be broken or chewed. This medicine should be taken with 1 glass of water which has an effect for 4-5 hours. Therefore, it is important to consult your doctor while taking this medicine