Use our drug interaction checker to find potentially harmful drug, food, and alcohol interactions. Type a drug name in the box above to get started. Not all drugs interact, and not every interaction means you must stop taking one of your medications. A drug interaction happens when food, supplements or other drugs prevent a medication from working as it should or cause unwanted effects in your body. Check for drug interactions and learn what drug combinations to avoid with the RxList drug interaction checker tool. Drug interactions may make your drug less effective, cause unexpected side effects, or increase the action of a particular drug. Some drug interactions can even be harmful to you. Access drug & treatment information, identify pills, check interactions and set up personal medication records. Subscribe to our newsletter for the latest medication news, new drug approvals and FDA alerts. Free drug, supplement, food, and alcohol interaction checker. Every result quotes the FDA label it came from. No account, no ads, no tracking of your list. Use WebMD’s Drug Interaction Checker to identify potential interactions between medications, supplements, and foods. Reduce side effects and support safer treatment decisions. Check drug-drug and drug-food interactions across 1.4 million pairs: severity levels and plain-English explanations. Free, no sign-up required. Use this medicine and drug interaction checker to see whether your medicines, supplements, vitamins, foods, or certain health conditions may interact with each other. Medscape's Drug Interaction Checker helps you build safer, more effective treatment plans by quickly identifying potential interactions between medications, supplements, and even common foods.