Abstract: A granular pharmaceutical preparation prepared by granulating finely powdered Ebselen(2-phenyl-1,2-benzisoselenazol-3(2H)-one) using a hydrophilic polymer, and an aqueous suspension thereof. The Ebselen granular pharmaceutical preparation of the present invention is excellent in its performance as an oral preparation for use in stomach tube administration. That is, since it can be dispersed easily and uniformly when suspended in water or an aqueous solution before its use, and the suspension can be maintained in excellent dispersed state, preparation and tube administration of the drug solution can be made easily. Also, its dose is accurate because the administration can be effected with no drug or drug solution remained in the tube after the administration. In addition, the granular pharmaceutical preparation of the present invention is also suited for its large scale production, because it can be produced without employing special apparatuses and production steps.