59,000+ Interactions Analyzed
Supplement Interactions Guide
Evidence-based information on how supplements interact with medications and each other. Know what's safe before you take it.
Check Multiple Supplements at Once
Our stack analyzer checks all your supplements for interactions in seconds.
Analyze My StackMost Important Interactions
Magnesium + Blood Thinners
ModerateWhat to know about magnesium and anticoagulants
Learn moreFish Oil + Blood Thinners
ModerateOmega-3s and anticoagulant safety
Learn moreVitamin K + Warfarin
SignificantCritical interaction for warfarin users
Learn moreSt. John's Wort + Birth Control
SignificantWhy this combination is dangerous
Learn moreMagnesium + Antibiotics
SignificantTiming matters for antibiotic effectiveness
Learn moreGrapefruit + Statins
SignificantWhy grapefruit affects cholesterol meds
Learn moreSupplement + Supplement
Interactions by Medication Type
💉Blood Thinners
❤️Blood Pressure Medications
🦋Thyroid Medications
🩸Diabetes Medications
Our Interaction Data
59,000+
Documented interactions
Clinical
Evidence-based data
Updated
Regular literature review