16 August 2018 - Hundreds of cancer patients in Canada did not receive the full dose of three highly concentrated intravenous medications because of problems with the way they were administered. 

However, at least two provinces disagree on whether the patients need to be told.

The drugs, which were introduced in this decade, are for advanced cases of cancer and are given to patients in hospitals using a similar method to how chemotherapy is administered: via an intravenous tube attached to a pump. In June, Cancer Care Ontario learned that the way some hospitals were using this system when they administered these drugs could leave small amounts behind after the treatment ended. The problem was first noticed by a health-care worker at Trillium Health Partners in Mississauga.

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