[A combination tablet of ethynyluracil and fluorouracil. Fluorouracil is an antimetabolite fluoropyrimidine analog of the nucleoside pyrimidine with antineoplastic activity. Ethynyluracil is an orally-active fluoropyrimidine analog that inhibits dihydropyrimidine dehydrogenase, the rate-limiting enzyme that catabolizes and inactivates 5-fluorouracil in the liver. This may lead to an increase in the bioavailability and, effectiveness of fluorouracil. ( NCI )] (UMLS (NCI) C0393027) =Therapeutic or Preventive Procedure
[A functional (qualitative) as well as quantitative assay that is utilized as an indicator of granulopoiesis reconstitution. ( NCI )] (UMLS (NCI) C0201610) =Laboratory Procedure