The present invention relates to pharmaceutical technology field, a kind of allopurinol slow releasing capsule and preparation method thereof is disclosed. Allopurinol slow releasing capsule of the present invention includes Allopurinol, bleaching dewaxed shellac, blank capsule core, PVP K30 and talcum powder. The present invention changes formula composition, selects the peculiar preparation process of the suitable raw material cooperation present invention, prepares the high stability product of the essentially identical release of allopurinol slow releasing preparation of different batches.本發明涉及醫藥技術領域，公開了一種別嘌醇緩釋膠囊及其製備方法。本發明所述別嘌醇緩釋膠囊包括別嘌醇、漂白脫蠟蟲膠、空白丸芯、聚維酮K30和滑石粉。本發明改變配方組成，選擇相適宜的原料配合本發明特有製備工藝，製備出不同批次的別嘌醇緩釋製劑基本相同釋放度的高穩定性産品。
