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. Use the interactions A to Z to look up a drug and see which other drugs it interacts with and the severity of these interactions. A drug interaction happens when foods, drinks, dietary supplements or other drugs prevent medications from working as they should. Such interactions can occur when you’re taking prescription or over-the-counter drugs. It’s crucial to keep an updated list of all of your medications and supplements and share it with your healthcare providers. 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. Check for interactions between drugs including warnings for food, alcohol, pregnancy, breastfeeding, and diseases. Switch between consumer and professional reports. Know how to take drugs safely and responsibly. Remember, the drug label will tell you: what the drug is used for how to take the drug how to reduce the risk of drug interactions and unwanted side. A drug interaction is when one medicine affects how another medicine works in the body. Interactions can involve prescription drugs, over-the-counter medicines, supplements, herbal remedies, foods, alcohol, or medical conditions. Use WebMD’s Drug Interaction Checker to identify potential interactions between medications, supplements, and foods. Reduce side effects and support safer treatment decisions. Use Drugs.com’s Drug Interaction Checker, trusted by doctors and patients, to instantly review your meds for unsafe combinations. Check for drug interactions and learn what drug combinations to avoid with the RxList drug interaction checker tool.