Pharmaceutical spray composition comprising a vitamin d analogue and corticosteroid

A sprayable, storage stable, substantially anhydrous topical composition comprising

• a therapeutically effective amount of a vitamin D derivative or analogue and a therapeutically effective amount of a corticosteroid, the vitamin D derivative or analogue and the corticosteroid being dissolved in a pharmaceutically acceptable propellant selected from the group consisting of dimethyl ether, diethyl ether and methylethyl ether or a propellant mixture comprising a first propellant selected from the group consisting of dimethyl ether, diethyl ether and methylethyl ether and a second propellant selected from the group consisting of C3-5 alkanes, hydrofluoroalkanes, hydrochloroalkanes, fluoroalkanes and chlorofluoroalkanes,
• the composition further comprising a pharmaceutically acceptable lipid carrier solubilized or suspended in said propellant or propellant mixture, the lipid carrier comprising one or more lipids which on application on skin and evaporation of the propellant form a semi-solid and occlusive layer at the site of application.