How much of the Canadian drug supply is imported from the US in the first place? How many manufacturers in Canada are independent and not just local operations of international pharmaceutical companies?
In those scenarios why would they ship more drugs to Canada to be reimported into the US or expand their manufacturing capabilities in Canada? To sell the drugs at a lower price than they can get by selling them in the US directly? They’d be losing money. Instead they’d keep the Canadian imports/manufacturing flat or on pace with existing growth in the country so that there will be shortages and export restrictions.
If politicians in Florida of all places like the benefits of Canadian price controls then perhaps they should start adopting them here in the US.