A
rectal suppository is described. The
rectal suppository contains 6-thioguanine, at least one
stearin and at least one surfactant. Further or optionally, the
rectal suppository comprises from about 1 mg to 9 mg of 6-thioguanine. Further or optionally, the present invention describes methods of preventing, treating and / or managing
inflammatory bowel disease in a subject. The method comprises administering a rectal
suppository to a subject in need thereof. Further or optionally, the present invention describes a method of making a rectal
suppository. The present invention relates to a process for preparing a rectal
suppository comprising the steps of (a) heating
stearin to become liquid
stearin, (b) adding at least one surfactant to the liquid stearin, (c) adding 6-thioguanine to the liquid stearin, (d) shaping stearin into a rectal suppository. The step (b) is optionally performed before or after the step (c).