Melatonin Drug Interactions and Precautions

Introduction to Melatonin Interactions

The American Academy of Sleep Medicine recommends caution when prescribing melatonin to patients taking warfarin due to potential interactions reported to the World Health Organization 1, 2
The American Academy of Sleep Medicine advises caution when prescribing melatonin to patients using photosensitizing medications, recommending periodic ophthalmological and/or dermatological monitoring 1, 2
The American Academy of Sleep Medicine suggests that patients with epilepsy should be prescribed melatonin with caution based on case reports 1, 2
The American Academy of Sleep Medicine notes that melatonin has been associated with impaired glucose tolerance in healthy women after acute administration 1, 2
The American Academy of Sleep Medicine reports that melatonin has been associated with increased depressive symptoms in some individuals 1, 2

The American Academy of Sleep Medicine recommends starting with lower doses of melatonin, as higher doses can cause receptor desensitization, although the optimal dose may vary 3
The American Academy of Sleep Medicine suggests taking melatonin 1.5-2 hours before desired bedtime for optimal effect 3
The American Academy of Sleep Medicine advises choosing United States Pharmacopeial Convention Verified formulations for more reliable dosing and purity 1, 2

The American Academy of Sleep Medicine recommends monitoring for enhanced sedation, changes in blood pressure, and mood alterations when using melatonin with interacting medications 1, 2
The American Academy of Sleep Medicine suggests documenting concurrent medications before recommending melatonin to review for potential interactions 1, 2
The American Academy of Sleep Medicine recommends considering non-pharmacological sleep interventions first for patients on multiple medications with potential interactions 4
The American Academy of Sleep Medicine advises periodic reassessment of melatonin use due to scarce studies addressing long-term effects 1, 2