Efficacy of acetylleucine in vertigo and dizziness: a systematic review of randomised controlled trials.

Purpose: To assess the efficacy of acetylleucine to improve or stop an attack of vertigo and dizziness (vertigo/dizziness).

Methods: Systematic review by 2 independent reviewers. Consultation of the Medline, Cochrane and ClinicalTrials.gov databases until September 2018. Keywords used: Acetylleucine, Tanganil®, Acetyl-DL-leucine, Acetyl-leucine. Trial selection: randomised controlled trials (RCTs) comparing acetylleucine against placebo.

Results: Up until 2018, no RCTs have been published on the efficacy of acetylleucine in vertigo/dizziness.

Conclusion: There is no solid evidence of the efficacy of acetylleucine in vertigo/dizziness. Given its frequent prescription and the cost generated for the French social security system, high-quality randomised trials should be carried out to assess its efficacy.