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. Use this medicine and drug interaction checker to see whether your medicines, supplements, vitamins, foods, or certain health conditions may interact with each other. Use WebMD’s Drug Interaction Checker to identify potential interactions between medications, supplements, and foods. Reduce side effects and support safer treatment decisions. Check for drug interactions and learn what drug combinations to avoid with the RxList drug interaction checker tool. Reduce medical error and patient risk with DrugBank's drug-drug interaction checker API. Instantly search our database of more than 1.3M drug-drug interactions. 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. The drug interactions checker will check for interactions between the drugs you enter, any possible food or disease interactions and pregnancy / breastfeeding warnings. A drug interaction occurs when one medication changes the way another medication works in your body. Interactions can increase a drug's side effects, reduce its effectiveness, or — in serious cases — cause life-threatening reactions. Drugs.com is the most popular, comprehensive and up-to-date source of drug information online. Providing free, peer-reviewed, accurate and independent data on more than 24,000 prescription drugs, over-the-counter medicines & natural products. Display complete list of interactions for an individual item by clicking item name. Add another item to analyze for potential interactions. NOTE: This tool does not address chemical compatibility related to I.V. drug preparation or administration.