Which antibiotics should be avoided by patients with long QT syndrome (LQTS)?

Updated: Nov 29, 2017
  • Author: Ali A Sovari, MD, FACP, FACC; Chief Editor: Mikhael F El-Chami, MD  more...
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Antibiotics to be avoided include the following:

  • Erythromycin (E-Mycin, EES, EryPed, PCE): For lung, ear, and throat infections
  • Trimethoprim and sulfamethoxazole (Bactrim, Septra):  For urinary, ear, and lung infections
  • Pentamidine (Pentam, intravenous): For lung infections

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