Drug Interaction Checkers

Check for interactions between medications, herbals, vitamins, and alcohol. Listed tools are free to use and with few exceptions do not require registration. Always ask your doctor or pharmacist about possible interactions before starting a new medication.

Subscription Services

  • Gold Standard Drug Database
    Platform to help healthcare workers navigate medication-oriented tasks efficiently and safely.
  • Lexi-Interact
    Leading provider of interaction data for healthcare professionals.
    lexi.com - Subscription
  • Micromedex Drug Interactions
    Drug interaction lookup service from IBM/Truven. Institutional access only.
    ibm.com - Subscription

Additional Resources