The invention provides a coprostasis curative, which takes seed vessel of blonde psyllium as effective ingredient, and can discharge waste (stubborn stool) in the intestine smoothly. The coprostasis curative provided in the invention characterized in that it contains ingredient (a) and (b) as following: (a) seed vessel of the blonde psyllium (b) the following formula (1) represents polyoxyethylene polyoxypropylene glycol. In the formula (1), a+c is between 3 and 200, b is between 5 and 67. HO-(C2H4O)a-(C3H6O)b-(C2H4O)c-H (1).
