therapeutic agent for inflammatory bowel disease comprising as active ingredient a 2-amino-1,3-propanediol, and method for the treatment of inflammatory bowel disease

The compound 2-amino-2- [4- (3-benzyloxyphenylthio) -2-chlorophenyl] ethyl-1,3-propanediol, or a salt or hydrate pharmaceutically acceptable thereof, for use in the treatment or prevention of a disease inflammatory bowel.