Vestibular Reactions Associated with Minocycline

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Abstract
Several recent reports have indicated that minocycline, a drug effective for meningococcal disease prophylaxis, is associated with a high incidence of vestibular side effects. In January 1975, a questionnaire on adverse reactions was completed by all 29 staff members of a North Georgia hospital who had taken minocycline at the recommended dosage after exposure to a suspected meningococcal meningitis case and by 25 age-, sex-, and occupation-matched non-treated controls. In the treated group 86% experienced moderate to severe vestibular symptoms; 84% of the symptomatic persons experienced their onset after one or two doses of 100 mg. Fifty-two percent of the treated staff members stopped taking the medication because of these effects. The symptoms resolved within 48 h after affected persons discontinued the medication. Until the safety of minocycline can be reestablished, rifampin is recommended for meningococcal disease prophylaxis, and alternative drugs are encouraged for other indications.