⚠️ Mechanism
Grapefruit is a strong inhibitor of CYP3A4, which decreases metabolism of CYP3A4 substrates, potentially increasing their plasma concentrations and risk of adverse effects.
📋 Effect
Increased plasma levels of amitriptyline (tricyclic-antidepressants), potentially leading to toxicity or enhanced adverse effects.
💊 Management
Monitor for increased adverse effects of amitriptyline. Dose reduction may be necessary. Consider alternative supplement or consult healthcare provider.
Plain Language Summary
This combination is dangerous. Grapefruit can prevent your body from breaking down this medication properly, which may cause the drug to build up to unsafe levels in your system. This increase can lead to a higher 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.