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ethynyluracil An orally-active fluoropyrimidine analogue. Ethynyluracil inhibits dihydropyrimidine dehydrogenase, the rate-limiting enzyme that catabolizes and inactivates 5-fluorouracil (5-FU) in the liver. Co-administration of ethynyluracil permits the oral administration of 5-FU. Check for active clinical trials or closed clinical trials using this agent. (NCI Thesaurus)
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Synonyms: | ![](https://webarchive.library.unt.edu/eot2008/20090115041739im_/http://www.cancer.gov/images/spacer.gif) | 5-ethynyluracil eniluracil | | ![](https://webarchive.library.unt.edu/eot2008/20090115041739im_/http://www.cancer.gov/images/spacer.gif) | Code names: | ![](https://webarchive.library.unt.edu/eot2008/20090115041739im_/http://www.cancer.gov/images/spacer.gif) | 776C85 ADH300004 GW776 GW776C85 | | ![](https://webarchive.library.unt.edu/eot2008/20090115041739im_/http://www.cancer.gov/images/spacer.gif) | Chemical structure name: | ![](https://webarchive.library.unt.edu/eot2008/20090115041739im_/http://www.cancer.gov/images/spacer.gif) | 5-ethynyl-2,4(1H,3H)-pyrimidinedione | | ![](https://webarchive.library.unt.edu/eot2008/20090115041739im_/http://www.cancer.gov/images/spacer.gif) |
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