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Updated: Apr 22, 2026

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Assessment of Morphine-induced Hyperalgesia and Analgesic Tolerance in Mice Using Thermal and Mechanical Nociceptive Modalities
Published on: July 29, 2014
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Auditory symptoms as an unrecognized manifestation of opioid toxicity: two case reports
Journal of Pain & Palliative Care Pharmacotherapy
|October 10, 2014
Abstract:
Neuropsychiatric and gastrointestinal side effects of opioids are well documented, but self-reported hearing disturbance from opioids is often unrecognized. Two cases are presented illustrating a possible association between auditory symptoms and opioid toxicity. Possible mechanisms are discussed.

