Two patients receiving gentamicin sulfate experienced acute organic brain syndromes that subsided after use of the drug was discontinued. Among the various factors considered as possible causes, time sequences point to gentamicin as the most likely.
(JAMA 238:53-54, 1977)
Byrd GJ. Acute Organic Brain Syndrome Associated With Gentamicin Therapy. JAMA. 1977;238(1):53-54. doi:10.1001/jama.1977.03280010053022