Cenforce is a non-prescription drug for men who suffer from erectile dysfunction. This disorder is also known as impotence. The basis of this medication is the same component that is used in Viagra — Phosphorylcholine (which belongs to the class of inhibitors of phosphodiesterase 5). It is worth mentioning for those people who are not familiar with Viagra that it is a world-famous remedy for male impotence. But how is Cenforce different from Viagra? The composition of the first drug does not contain all the ingredients of Viagra and therefore it is allowed to sell it without a prescription.