Can cefepime (a fourth-generation cephalosporin antibiotic) cause tinnitus?

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From the Guidelines

Cefepime is unlikely to cause tinnitus as the primary evidence does not directly link cefepime with this side effect, and the available studies focus on other medications and conditions 1. The provided evidence primarily discusses ototoxicity in the context of other medications, such as amikacin and cisplatin, which are known to cause hearing loss and tinnitus 1. While cefepime, a fourth-generation cephalosporin antibiotic, can have side effects, the direct association with tinnitus is not strongly supported by the given studies. However, it's essential to consider that tinnitus can be a rare side effect of various medications, including antibiotics, and patients should be monitored for any adverse effects, especially those with risk factors such as renal impairment or those on high doses or prolonged therapy. If a patient develops tinnitus while taking cefepime, they should inform their healthcare provider promptly, as it might necessitate dose adjustment or switching to an alternative antibiotic, prioritizing the patient's morbidity, mortality, and quality of life. Key points to consider include:

  • Monitoring for ototoxicity and other neurotoxic effects in patients receiving cefepime, especially in high-risk groups.
  • The importance of baseline and intermittent audiometry in patients undergoing treatment with potentially ototoxic medications, as recommended in guidelines for managing non-tuberculous mycobacterial pulmonary disease 1.
  • The mechanism of ototoxicity, which often involves damage to the cochlea, as seen with medications like cisplatin 1.

From the Research

Cefepime and Tinnitus

  • There is no direct evidence in the provided studies that links cefepime to tinnitus 2, 3, 4, 5, 6.
  • The studies focus on the neurotoxic effects of cefepime, including encephalopathy, seizures, and myoclonus, particularly in patients with renal dysfunction 2, 3, 4, 5, 6.
  • None of the studies mention tinnitus as a potential side effect of cefepime, suggesting that it may not be a well-documented or commonly reported adverse effect 2, 3, 4, 5, 6.

Neurotoxic Effects of Cefepime

  • Cefepime has been associated with neurotoxicity, including symptoms such as altered mental status, myoclonus, and seizures 2, 3, 4, 5, 6.
  • Renal dysfunction is a significant risk factor for cefepime-induced neurotoxicity, and patients with severe renal impairment may be at greater risk 2, 3, 4, 6.
  • The studies suggest that cefepime-induced neurotoxicity can occur even with appropriate dosing and renal adjustment 4, 5, 6.

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Professional Medical Disclaimer

This information is intended for healthcare professionals. Any medical decision-making should rely on clinical judgment and independently verified information. The content provided herein does not replace professional discretion and should be considered supplementary to established clinical guidelines. Healthcare providers should verify all information against primary literature and current practice standards before application in patient care. Dr.Oracle assumes no liability for clinical decisions based on this content.

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