The inhibition of tryptophan pyrrolase by allopurinol, an inhibitor of xanthine oxidase.
D000493:Allopurinol / Q000494:pharmacology*; D000818:Animals; D005260:Female; D007700:Kinetics; D007737:Kynurenine / Q000652:urine; D008099:Liver / Q000201:enzymology*; D051381:Rats; D014364:Tryptophan / Q000097:blood; D014366:Tryptophan Oxygenase / Q000037:antagonists & inhibitors*; D014969:Xanthine Oxidase / Q000037:antagonists & inhibitors
D007737:Kynurenine; D000493:Allopurinol; D014364:Tryptophan; D014366:Tryptophan Oxygenase; D014969:Xanthine Oxidase