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An 82-year-old man developed drug induced delirium following treatment with piperacillin/tazobactam [exact duration of treatment to reaction not stated].
The man, who had been diagnosed with left lobe lower pneumonia, started receiving antibiotic treatment with IV piperacillin/tazobactam 4.5g every 6 hours. However, after 5 doses of piperacillin/tazobactam, he started becoming delirious. The brain CT scan showed signs of diffuse cerebral atrophy. He...