THE PRESENT INVENTION PROVIDES A PHARMACEUTICAL COMPOSITION HAVING A SINGLE DOSAGE FORM COMPRISING A COMPARTMENT COMPRISING OLMESARTAN MEDOXOMIL AND A COMPARTMENT COMPRISING ROSUVASTATIN OR ITS SALT, WHEREIN SAID COMPARTMENTS ARE FORMULATED IN A SEPARATE FORM. IN THE PHARMACEUTICAL COMPOSITION OF THE PRESENT INVENTION OLMESARTAN MEDOXOMIL AND ROSUVASTATIN OR ITS SALT ARE FORMULATED INTO A COMBINATION DOSAGE FORM HAVING SEPARATE COMPARTMENTS, THEREBY BEING ABLE TO SOLVE THE ABSORPTION-INHIBITION PROBLEM ORIGINATED FROM DRUG INTERACTION. IN ADDITION, THE USE OF A CERTAIN DISINTEGRANT(S) MAKES IT POSSIBLE TO OBTAIN A COMBINATION FORMULATION BIOEQUIVALENT TO THE SINGLE FORMULATION OF EACH OF DRUGS. THE MOST ILLUSTRATED DRAWING: FIG. 1