6-MercaptopurineThioguanineAzathioprineMethylthioinosinePrecursor Cell Lymphoblastic Leukemia-LymphomaMethyltransferasesAntimetabolitesAntimetabolites, AntineoplasticMethotrexateHypoxanthinesInflammatory Bowel DiseasesThionucleotidesThionucleosidesImmunosuppressive AgentsAsparaginaseGuanine NucleotidesThioinosinePurinesInosine MonophosphatePharmacologyPhosphoribosyl PyrophosphateAminosalicylic AcidsXanthine OxidaseMesalaminePurine NucleotidesCrohn DiseaseAllopurinolAldehyde OxidaseProdrugsIon Exchange ResinsLeukemia L1210AzauridineAzaguanineCytarabineInosineLeukemia, LymphoidRemission InductionErythrocytesHypoxanthine PhosphoribosyltransferasePurine Nucleosides