Drug Interaction

Drug Interactions

Tips for avoiding dangerous drug interactions

Other drugs and even some foods can interact with your medication. To help prevent drug interactions, it's important to know as much as you can about the drugs you take and to communicate openly with your doctors and pharmacists.

What can cause drug interactions?

The prescription drugs you take can interact with:

  • Other prescriptions
  • Over-the-counter medicines
  • Herbal supplements
  • Foods and drinks
Tips for avoiding drug interactions
  • Tell your doctor about ALL the medicines you take — Include prescriptions, over-the-counter (OTC) drugs, vitamins, and supplements - including samples your doctor provides.

    To help you get started, fill out My Medicine List (link opens in new window) (US Spanish) (link opens in new window) (Puerto Rico Spanish) (link opens in new window)

  • Know all you can about the medications you take — Know what they're called, what you take them for, and any special instructions (for example, take with food or on an empty stomach).
  • Ask questions at the pharmacy — You'll probably sign a form saying you do or don't want to talk to the pharmacist.
  • Don't just sign the form — if you have questions, ask them. The pharmacist can clarify your doctor's instructions and may offer additional information that could help you avoid a potentially dangerous drug interaction.
Drug Interaction Checker

Taking more than one medication? Need to know if certain foods will interact with your medication? This tool will check for any interactions with your drug, whether it's with food or with other medications. Don't stop taking any medication(s) without talking to your doctor first. To use the Drug Interaction Checker, visit the Drug Dictionary

Healthcare reform

Healthcare glossary

Find medical and insurance terms.

Browse the glossary
Doctor Smiling with Patient

Understanding Medical Radiation

Did you know common medical tests such as X-rays and CT scans use radiation? Learn about the long-term effects of radiation on the body, and how to minimize your risk.

Learn More
Healthier living, stronger future

Healthier living, stronger future

Want to live a stronger, fuller life?

Read healthy living articles