kamagra oral jelly 100mg are used to treat men suffering from erectile dysfunction and impotence. This medicine Contains sildenafil as the active ingredient. Which is similar to Viagra so this drug is cheaper than Viagra so men prefer to take this drug. The effect of this medicine lasts for 4-5 hours so men should take this medicine 30 minutes before sexual intercourse. You should not eat heavy food and do not consume alcohol while taking this medicine.