Pharmaceutical compositions in the form of a solid dispersion comprising (4R)-4-[N'-methyl-N'-(3,5-bistrifluoromethyl-benzoyl)-amino]-4-(3,4-dichlorobenzyl)-but-2-enoic acid N-[(R)-cpsilon-caprolactam-3-yl]-amidc or a pharmaceutically acceptable salt or solvate thereof and a carrier. Such compositions are useful to treat patients who have functional motility disorders of the viscera, especially irritable bowel syndrome or functional dyspepsia, or urinary bladder disorders, especially urinary incontinence.