Xanthinuria, Type I, also known as xanthine dehydrogenase deficiency, is related to xanthinuria and xanthinuria, type ii. An important gene associated with Xanthinuria, Type I is XDH (Xanthine Dehydrogenase), and among its related pathways/superpathways are Metabolism and glycolysis (BioCyc). The drugs Nifedipine and Progesterone have been mentioned in the context of this disorder. Affiliated tissues include kidney and skeletal muscle, and related phenotypes are myopathy and hydronephrosis