Intravenous and inhalational colistin-induced respiratory failure.

The emergence of highly resistant gram-negative pathogens in hospitals around the world has placed emphasis on colistin, a seemingly ancient drug. Respiratory failure from colistin was reported in the years following its release; however, there are no recent reports of colistin-induced respiratory failure. We report a case of intravenous colistin- and, later, inhalational colistin-induced respiratory failure.