Peppermint and Improved Irritable Bowel Syndrome Symptoms

Safety in these studies

Overall tolerabilityIncreased riskRR of any adverse event = 1.57; 95% CI 1.04-2.37
Adverse event rates were significantly higher with peppermint oil (RR of any adverse event = 1.57; 95% CI 1.04-2.37).
from: Systematic review and meta-analysis: efficacy of peppermint oil in irritable bowel syndrom
gastro-oesophageal refluxReported
occurrence of any adverse event or of gastro-oesophageal reflux.
from: Systematic review and meta-analysis: efficacy of peppermint oil in irritable bowel syndrom

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Systematic review and meta-analysis: efficacy of peppermint oil in irritable bowel syndrome.