Free drug interaction checker
Enter your prescriptions, OTC meds, and supplements — one per line or separated by commas. We'll flag common interactions and duplicate-class issues instantly. No sign-up.
Want this checked automatically every time you add a med?
DoseTracking watches your full medication list, reminds you when to take each dose, tracks refills, and re-runs interaction checks whenever anything changes.
Common questions
Is this drug interaction checker free?
Yes — free, no sign-up, no ads. Works for prescription drugs and supplements.
Can I check supplements and vitamins too?
Yes. Fish oil, ginkgo, vitamin K, calcium, iron, magnesium, and St. John's Wort are all covered alongside common prescriptions.
Is this a substitute for medical advice?
No. This is an educational tool that flags common class-based interactions. Always confirm with your pharmacist or prescriber before changing how you take any medication.
How does it work?
We map each name to a drug class (e.g. ACE inhibitor, SSRI, anticoagulant) and apply rule-based checks for known severe, moderate, and informational interactions, plus duplicate-class detection.
DoseTracking is not a medical device and does not replace professional medical advice. See our medical disclaimer.