A medicinal solid-dispersion preparation containing a cilnidipine compound. It has high water solubility and hence has high solubility in the digestive tract. It has a high extent of bioavailability. The medicinal solid-dispersion preparation comprises: cilnidipine or a pharmaceutically acceptable salt thereof； and a specific water-soluble polymer (i.e., a specific cellulose, derivative thereof, synthetic polymer, natural polymer, or saccharide).
