The present invention relates to RNAi agents, e.g., double stranded RNAi agents, targeting a xanthine dehydrogenase (XDH) gene, and methods of using such double stranded RNAi agents to inhibit expression of an XDH gene and methods of treating subjects having an XDH-associated disease.本發明係關於以黃嘌呤脫氫酶(XDH)基因為靶向之RNAi劑,如雙股RNAi,以及使用此雙股RNAi劑來抑制XDH基因之表現的方法及治療患有XDH相關疾病之個體的方法。