https://www.fedex.com/en-ca/shipping-services/international/regulatory/prescription-reminder.html
https://www.canada.ca/en/health-can...al-use-health-products-guidance/document.html
FedEx and Health Canada say that as long as you have a valid work/study permit (which both fall under the temporary residency category), you're entitled to ship prescription meds as long as they are 3 months worth, come with a doctor's report and state very visibly that they are going to a temporary resident. It would be confiscated in any other case.
I recently got a PFL for my status and I was asked to prove that I wouldn't cause excessive demand on the healthcare system. I get my ARVs for free here and I hired an immigration consultant which helped me make a mitigation plan that included a note from my healthcare provider and pages from FedEx/Health Canada, creating a plan around the mailing of prescription medications. Why would official sources say any of these if it weren't accurate?
As a backup plan, I also said I would pay the $3,900 balance to acquire the medication from my school healthcare should that plan not be feasible for the medical officer. But given what is very clearly stated there, it would be bizarre if it wasn't true. It would be indisputably misleading.