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Ginkgo × Antidiarrheals

MODERATE INTERACTION

⚠️ Mechanism

Ginkgo is a moderate inhibitor of P-gp, which decreases metabolism of P-gp substrates, potentially increasing their plasma concentrations and risk of adverse effects.

📋 Effect

Increased plasma levels of loperamide (antidiarrheals), potentially leading to toxicity or enhanced adverse effects.

💊 Management

Monitor for increased adverse effects of loperamide. Dose reduction may be necessary. Consider alternative supplement or consult healthcare provider.

Plain Language Summary

This combination carries a moderate risk because Ginkgo can cause antidiarrheal medication to build up in your system. This increase in medication levels may lead to a higher risk of experiencing side effects.

Source

Flockhart CYP450 Table (drug-interactions.medicine.iu.edu)

Supporting Research

Ginkgo biloba for cognitive impairment and dementia PMID:41641880 DOI:10.1002/14651858.CD013661.pub2 2026
Ginkgo biloba for cognitive impairment and dementia PMID:19160216 DOI:10.1002/14651858.CD003120.pub3 2009
Ginkgo biloba for tinnitus PMID:23543524 DOI:10.1002/14651858.CD003852.pub3 2013
Ginkgo biloba for tinnitus PMID:36383762 DOI:10.1002/14651858.CD013514.pub2 2022
Ginkgo biloba for intermittent claudication PMID:23744597 DOI:10.1002/14651858.CD006888.pub3 2013
The Comparative Efficacy of Multiple Interventions for Mild Cognitive Impairment in Alzheimer's Disease: A Bayesian Network Meta-Analysis PMID:32581760 DOI:10.3389/fnagi.2020.00121 2020
Comparative effects of Bacopa monnieri and Ginkgo biloba on cognitive functions: A systematic review and network meta-analysis PMID:41678913 DOI:10.1016/j.phymed.2026.157915 2026
Ginkgo biloba for intermittent claudication PMID:19370657 DOI:10.1002/14651858.CD006888.pub2 2009
Medical Disclaimer: This interaction record is for informational and educational purposes only and does not constitute medical advice. Drug-supplement interactions can be dangerous. Always consult your healthcare provider or pharmacist before combining any supplement with prescription medications. Do not stop or change any medication without professional guidance.