THE PRESENT INVENTION RELATES TO THE FORMULATION OF SOLID DOSAGE FORMS COMPRISING A THERAPEUTICALLY EFFECTIVE AMOUNT OF A DIHYDROPYRIDINE CALCIUM CHANNEL ANTAGONIST SUCH AS LERCANIDIPINE OR SALT THEREOF, IN COMBINATION WITH COLLOIDAL SILICON DIOXIDE SUCH AS AEROSILᵀᴹ TO ENHANCE BIOAVAILABILITY AND IMPROVE SOLUBILITY, AND A PROCESS FOR THE PREPARATION THEREOF BY WET GRANULATION. (NO SUITABLE FIGURE)