Kamagra Online is used to treat erectile dysfunction (ED) and premature ejaculation in men. This medicine contains an ingredient called Sildenafil which helps in increasing the blood flow to the male penile tissue and relaxes the penile tissue muscles. This medicine works effectively if taken 30 minutes or 1 hour before intercourse. The effect of this medicine lasts for 4 to 6 days. You can take this medicine before or after food. Take this medicine as advised by your doctor.