⚠️ Mechanism
Garlic is a weak 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 carries a moderate risk because garlic can interfere with how your body breaks down tricyclic antidepressants. This may cause higher levels of the medication to build up in your system, which could increase the chance of side effects.
Source
Flockhart CYP450 Table (drug-interactions.medicine.iu.edu)