Various pharmacies in Canada will accept a US prescription and send you the medication via mail, usually at far cheaper than what you would pay for the same in the US.

This prevents it.

Means you can no longer legally^W practically buy far cheaper prescription medicines from Canada, Mexico, India, China etc and ship them to the US.

Their own primer on the topic: https://www.personalimportation.org/understand-the-issue

The people in charge betting they only need to count the "red" ballots this time?