Adverse Drug Interactions Program

The Adverse Drug Interactions Program from The Medical Letter provides unbiased, reliable and timely information on drugs. The service allows the user to list each of the drugs their patient is taking, and then view the possible interactions on the screen. In addition, you can view reference citations pertinent to the interaction. The on-line search will handle interactions from two up to 12 drugs. There is also an index of over 3,000 brand names with generic equivalents. The program is updated every six months to keep it current.

To access the Adverse Drug Interactions Program, please follow these steps:

  • Read the terms of use below. You will be transferred to The Medical Letter website.

  • Close the pop-up window that scrolls across the home page by clicking the"X" in the top-right corner.

  • Scroll to the top-right corner of the homepage to locate the "Login" button and click on it. You will be asked for an EMAIL and a PASSWORD. Please enter your USERNAME in the email field. All RCDSO members have the same username and password.

Terms of Use

Adverse Drug Interactions Program

I understand that access to the on-line services provided by The Medical Letter, Inc. is being provided to me by the College as a service to its members. I further understand that the College is neither involved in the preparation of materials contained at The Medical Letter, Inc. site nor does it verify the accuracy or completeness of the information contained therein. I agree not to hold the College responsible for any consequences occasioned to me as a result of my use of the site or as a result of my reliance upon the information contained therein.

By clicking here you agree that you have read the above and agree to its terms.


Access to The Medical Letter

What should I do if I've forgotten the username and password?

Please contact:

Joanne Loy

QA & CE Administrator
phone: 416-961-6555 ext. 4703
toll-free: 1-800-565-4591
e-mail: jloy@rcdso.org