The active ingredient in Kamagra effervescent tablet is sildenafil. Which relaxes the smooth blood vessels around the pelvic organs and increases blood flow to the penis. It reduces the stress level of the organs And as the blood flow reaches the penis, a hard and steady erection is achieved for a long period of time.And make your sexual life happy.This medicine should be taken 30 minutes before sexual intercourse.It is important to consult your doctor while taking this medicine which lasts for 24 hours.