Medication Information

Get to know more about your medications with valuable, accurate information on prescription and over-the-counter drugs.


Welcome to the Costco Pharmacy Medication Library, powered by MediResource™. This detailed information resource is designed to support your health and wellness by helping you learn about and better understand your medications. All information is regularly reviewed and updated by Canadian doctors and pharmacists. For additional health information, please talk to your Costco Pharmacist.

Each Medication Library factsheet contains information about:

  • how the medication works
  • the correct way to take it
  • when you shouldn't take it
  • possible side effects
  • important precautions and warnings
  • possible drug interactions

All material © 1996- MediResource Inc. Terms and conditions of use. The contents herein are for informational purposes only. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition.