A medicament for the treatment and / or prevention of intestinal diseases, including inflammatory bowel diseases such as Crohns disease, for example, 4 - [(5,6,7,8-tetrahydro-5,5,8,8-tetra Pharmaceutical containing as an active ingredient a retinoid such as methyl-2-naphthalenyl) carbamoyl] benzoic acid.クローン病などの炎症性腸疾患を含む腸疾患の予防及び/又は治療のための医薬であって、例えば4-[(5,6,7,8-テトラヒドロ-5,5,8,8-テトラメチル-2-ナフタレニル)カルバモイル]安息香酸などのレチノイドを有効成分として含む医薬。