dantron dantron dantron (inn), also known as chrysazin or 1,8-dihydroxyanthraquinone, is an organic substance, formally derived from anthraquinone by the replacement of two hydrogen atoms by hydroxyl groups (–oh). it is used in some countries as a stimulant laxative. dantronclinical dataroutes ofadministrationoral, rectal (enema)atc codea06ab03 (who) a06ag03 (who)identifiers iupac name 1,8-dihydroxyanthracene-9,10-dione cas number117-10-2 ypubchem cid2950drugbankdb04816 nchemspider2845 yuniiz4xe6ibf3vkeggd07107 nchebichebi:3682 nchemblchembl53418 nniaid chemdb001375comptox dashboard (epa)dtxsid9020328 echa infocard100.003.794 chemical and physical dataformulac14h8o4molar mass240.214 g·mol−13d model (jsmol)interactive image smiles o=c2c1cccc(o)c1c(=o)c3c2cccc3o inchi inchi=1s/c14h8o4/c15-9-5-1-3-7-11(9)14(18)12-8(13(7)17)4-2-6-10(12)16/h1-6,15-16h nkey:qbpflulokwlnnw-uhfffaoysa-n n ny (what is this?) (verify) it should not be confused with ondansetron, an unrelated drug that was marketed in south africa under the trade name "dantron". medical uses in the usa, dantron is not used because it is considered to be a carcinogen. in the uk it is considered a possible carcinogen and so its use is restricted to patients who already have a diagnosis of terminal cancer. it is mainly used in palliative care to counteract the constipating effects of opioids. its british approved name was danthron, but it has now been changed to "dantron", the recommended international nonproprietary name. dantron can be administered orally, or can be administered rectally as an enema either in combination with other laxatives or alone. side effects dantron has the notable side-effect of causing red-colored urine.