Vitamin & Supplement Interaction Checker
Add 2 to 8 vitamins, supplements or medicines. See which ones clash, which work well together, and how to time them.
Popular checks
How the checker works
Every pair
Add up to 8 items and we check each pair. Three items means three pairs. Eight means 28.
Our guides first
Pairs we have written guides for use our reviewed notes. The rest is AI analysis, with the evidence level shown on each result.
Bring it to your pharmacist
Save the result as a PDF or copy the link. Each check ends with questions to ask about your exact list.
Want the detail on a common pair? Browse our interaction guides or the supplement guides.
Building a Supplement Stack?
Get personalized workout plans that pair perfectly with your supplements. FitFixLife helps you train smarter.
Visit FitFixLife →⚠️ Not medical advice. PharmoniQ gives general information for education only. It does not replace a pharmacist, doctor or other health professional. Talk to one before you start, stop or combine supplements or medicines.