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Sinha, Amitasha

0000-0002-4536-5877

A5055492900 | I1316535847

Mayo Clinic

Beth Israel Deaconess Medical Center

Citations 1

Amiodarone‐Induced Nystagmus and Ataxia: Case Report and Systematic Review of Case Reports

The Journal of Clinical Pharmacology | August 12, 2023 | Volume: 63 | Issue: 12 | Pages: 1324-1329

10.1002/jcph.2330 | PMID 37571970

AbstractAmiodarone is an antiarrhythmic drug with a significant adverse effect profile, including neurotoxicity. While ataxia, neuropathy, and tremors are more commonly seen forms of amiodarone neurotoxicity, very few cases of nystagmus are reported. We report the case of an 86‐year‐old man who presented with abrupt‐onset ataxia, dizziness, and inability to ambulate, 10 days after initiating amiodarone for atrial fibrillation. His examination revealed gaze‐evoked nystagmus along with features of cerebellar dysfunction. After excluding other etiologies, amiodarone was stopped. His nystagmus resolved, and his ataxia improved within 48 h of stopping amiodarone. Due to the rarity of this drug‐induced adverse effect, we performed a systematic review of available case reports in the literature (PubMed and Scopus) using Preferred Reporting Items for Systematic Reviews and Meta‐Analyses guidelines and presented our findings. Nystagmus is a rarely reported adverse effect of amiodarone, which can occur within days to months of starting the medication. Treatment includes stopping the drug and monitoring for resolution of nystagmus.