Drug Interaction Checker for Seniors on Multiple Medications
Adults 65+ often take 5 or more medications. Check all combinations at once — contraindicated interactions surface first.
Every interaction is ranked: contraindicated, major, moderate, or minor — so you focus on what matters most.
Data pulled directly from official U.S. FDA drug labels and NIH NLM — the same sources pharmacists use.
Point your phone at a medication label and CDI reads and adds it automatically.
Frequently Asked Questions
Why are drug interactions more dangerous for elderly patients?
Older adults metabolize drugs more slowly due to decreased kidney and liver function. They also typically take more medications, increasing the number of potential interactions. A combination that is merely moderate-risk for a young adult may be major-risk for a 75-year-old.
How many medications can I check at once?
You can check up to 20 medications simultaneously. The checker computes every possible pair combination, so nothing is missed.
Is this data based on FDA-approved labeling?
Yes. All interaction data is sourced directly from U.S. FDA drug labeling via openFDA and the NIH National Library of Medicine. No third-party summaries or editorial interpretation.
What does "contraindicated" mean?
A contraindicated interaction means the combination should never be used — the risk of serious harm is considered unacceptable. Always consult your physician or pharmacist if you see a contraindicated warning.
257,000+ FDA drug labels indexed. Free. No account required.
Data sourced from U.S. FDA drug labeling via openFDA and NIH NLM. For informational purposes only. Always consult your pharmacist or physician.