⚠️ Mechanism
Grapefruit 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 grapefruit can interfere with how your body processes antidiarrheal medication. This can cause the medication to build up in your system, which may increase the risk of side effects.
Source
Flockhart CYP450 Table (drug-interactions.medicine.iu.edu)
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.