An aqueous pharmaceutical solution com-position comprising between about 20 mg/ml to about 100mg/ml of a radioprotective .alpha.,.beta.-unsaturated aryl sulfone, acosolvent comprising polyethylene glycol (PEG),polypropylene glycol, polyglycerol, DMA, propylene glycol,glycerol, ethanol, sorbitol, isopropyl alcohol, or acombination thereof in an amount between about 25% andabout 90% w/v, and a water soluble Vitamin E derivative,wherein the composition has a pH within the range ofabout 7.0 to about 9.5.