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Rapid Communication| Volume 90, ISSUE 4, P528-529, April 1991

Acute psychoses associated with the use of ciprofloxacin and trimethoprim-sulfamethoxazole

  • Jack D. McCue
    Correspondence
    Requests for reprints should be addressed to Jack D. McCue, M.D., General Medicine/Geriatrics Division, Department of Medicine, Baystate Medical Center, Springfield, Massachusetts 01199.
    Affiliations
    From Tufts University School of Medicine, Boston, Massachusetts, USA

    Baystate Medical Center, Springfield, Massachusetts, USA
    Search for articles by this author
  • John R. Zandt
    Affiliations
    From Tufts University School of Medicine, Boston, Massachusetts, USA

    Baystate Medical Center, Springfield, Massachusetts, USA
    Search for articles by this author
      This paper is only available as a PDF. To read, Please Download here.
      Although adverse drug reactions are a wellrecognized cause of mental status changes in the elderly, antimicrobials are rarely implicated. Three patients with serious organic brain disease developed paranoid psychosis after therapy with trimethoprim-sulfamethoxazole or ciprofloxacin was begun. One of the patients was accidently rechallenged and again developed a psychotic reaction. The acute psychoses did not improve with moderate doses of major tranquilizers but resolved completely with drug discontinuation.
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