The invention relates to a process for preparing a composition, more particularly a pharmaceutical composition for oral administration, comprising the steps of forming a suspension of at least one pharmaceutical ingredient and a solvent or solvent mixture, the at least one pharmaceutical ingredient being insoluble or poorly soluble in the solvent or solvent mixture, the step of adding at least one gel former to the suspension, the at least one gel former being swellable in the solvent or solvent mixture, and, optionally, the step of swelling the suspension.