Williams K M, Chinwah P M, Cobcroft R
Med J Aust. 1979 Dec 1;2(11):617. doi: 10.5694/j.1326-5377.1979.tb127231.x.
A case of urinary crystalluria occurring in a patient during treatment with flucytosine (5-fluorocytosine) is presented. A reduction in the dosage of the 5-fluorocytosine resulted in a marked decrease in the excretion of urinary gravel which was shown to be a coprecipitate of 5-fluorocytosine and uric acid.