A method for producing a pharmaceutical composition comprising a combination of phospholipid and glycyrrhizic acid or a pharmaceutically acceptable salt thereof, which composition is hydratable to produce an injectable medicinal form, said method comprising subjecting a mixture of phospholipid and an aqueous solution of glycyrrhizic acid or a pharmaceutically acceptable salt thereof and a carbohydrate to homogenization, for example at 800-1200 bar pressure at a temperature of less than 90° C., and subjecting the product of the homogenization to a sublimation drying step to produce said composition. Compositions obtainable using this method, and hydrated forms of these ready for administration by injection form further aspects of the invention.