Demadex is used to treat Kidney disease, Kidney failure. The generic version is called Torsemide. The average Demadex cash price is about $87.63 for a supply of Tablet 10 MG 30 pcs. You can reduce your Demadex cost by up to 75% with our free Demadex discount card. Bring it to a participating pharmacy near you to save on your prescription medication.