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Updated: Oct 13, 2025

Trans-Tympanic Drug Delivery for the Treatment of Ototoxicity
Published on: March 16, 2018
Mechanisms of Ototoxicity and Otoprotection
1Translational Hearing Center, Biomedical Sciences, Creighton University, 2500 California Plaza, Omaha, NE 68178, USA.
Abstract:
Ototoxicity refers to damage to the inner ear that leads to functional hearing loss or vestibular disorders by selected pharmacotherapeutics as well as a variety of environmental exposures (eg, lead, cadmium, solvents). This article reviews the fundamental mechanisms underlying ototoxicity by clinically relevant, hospital-prescribed medications (ie, aminoglycoside antibiotics or cisplatin, as illustrative examples). Also reviewed are current strategies to prevent prescribed medication-induced ototoxicity, with several clinical or candidate interventional strategies being discussed.
Insights
Ototoxicity, or inner ear damage, can cause hearing loss and vestibular issues. This review covers how common medications like aminoglycoside antibiotics and cisplatin induce ototoxicity and strategies to prevent it.
Area of Science:
- Oto-toxicology
- Pharmacology
- Neuroscience
Background:
- Ototoxicity is inner ear damage causing hearing loss and vestibular dysfunction.
- It results from medications and environmental exposures.
- Clinically relevant drugs like aminoglycoside antibiotics and cisplatin are key examples.
Purpose of the Study:
- To review mechanisms of drug-induced ototoxicity.
- To discuss current and emerging prevention strategies.
- To provide an overview for clinicians and researchers.
Main Methods:
- Literature review of ototoxicity mechanisms.
- Analysis of clinical and preclinical prevention strategies.
- Focus on hospital-prescribed ototoxic medications.
Main Results:
- Aminoglycoside antibiotics and cisplatin induce ototoxicity via specific cellular pathways.
- Prevention strategies include dose management and protective agents.
- Emerging interventions show promise in preclinical studies.
Conclusions:
- Understanding ototoxicity mechanisms is crucial for prevention.
- Multifaceted strategies are needed to mitigate drug-induced hearing loss.
- Further research is essential for effective clinical interventions.
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