Valif oral jelly (20mg) is a wonderful medication which has vardenafil (20mg) as the major constituent.This particular medicine can treat the problem of male impotency. It has come in jelly form making it easier to take in the body.For people who have difficulty swallowing pills jelly form of medicine is more suitable.For elderly people, it is a great thing to have medication in jelly form because it becomes easy for them to consume it.The active ingredient in this medicine belongs to the class of PDE5 inhibitors which increases blood circulation to male genitals thus enabling male to achieve stiff erection suitable for sensual intercourse. It is necessary to avoid eating fatty food before taking this medicine because such food will not allow the medicine to work properly.The need is to take this medicine either one hour or thirty minutes before becoming sensually active. It is not advisable to consume alcohol while taking this medicine because this combination leads to drop of blood pressure which turns out to be dangerous.In case of allergy from the ingredient present in this medicine, it is better to avoid taking this medicine.Always discuss your past & present medical conditions with doctor. One thing to make sure before having this medicine is to get a prior prescription which is mandatory in all the cases.