HYDROXYDIONESODIUM HYDROXYDION Presuren Succinic acid 1-(sodium)4-(3,20-dioxo-5β-pregnan-21-yl) ester salt Succinic acid 1-sodium 4-(3,20-dioxo-5β-pregnane-21-yl) Viadril 21-(3-Carboxy-1-oxopropoxy)-5-beta-pregnane-3,20-dione sodium salt 21-Hydroxy-5beta-pregnane-3,20-dione 21-(sodium succinate)