“…Clinical histories very similar to each other have been described by a number of authors [3,[8][9][10]16,[22][23][24][25]29,32,36,39,44]; the most striking feature was that, some time after the end of a rather long and uneventful course of daily treatment, a single low dose of the drug was sufficient to elicit a severe reaction followed by renal failure. In four cases [3,10,22,29,44], the challenge dose of rifampicin was taken by the patient on his own initiative; one patient of this group [3] died with digestive hemorrhage 19 days after the onset of renal symptoms.…”