The present invention relates to a softgel encapsulated pharmaceutical composition comprising: from 55% to 90% by weight of a suspended pharmaceutical active from 0.001% to 1.00% by weight of a suspended stabilizing agent selected from the group consisting of phytic acid, disodium salts of ethylene diamine tetraacetic acid, calcium salts of ethylene diamine tetraacetic acid, tetrasodium ethylene diamine tetraacetic acid, sodium hexametaphosphate, di(hydroxyethyl)glycine, 8-hydroxyquinoline, and mixtures thereof and from 9% to 39% by weight of a solvent. The present invention also discloses the method of preparation of the pharmaceutical composition.