A composition for preventing and/or treating pancreatitis and a method of prevention and/or treatment of pancreatitis are disclosed. The composition include an aryl ethene compound, a pharmaceutically acceptable salt thereof, or a solvate thereof, as an active ingredient. Also disclosed is a use of the aryl ethene compound, a pharmaceutically acceptable salt thereof, or a solvate thereof, in manufacturing a medicament for preventing and/or treating pancreatitis or for treating one or more symptoms of pancreatitis in a patient. The method of prevention and/or treatment of pancreatitis includes administering the aryl ethene compound, an isomer, a pharmaceutically acceptable salt thereof, or a solvate thereof, in an effective amount to a subject in need thereof.