Two questions...

Hello!

I am living in the United States and I am going to Canada on Tuesday to just buy some insulin cause I am on a temporary insurance that doesnt cover the insulin I need, so I am flying up to Canada to buy some more, has anyone here flown up to Canada to just buy insulin if so what do I tell the guards? "Im here to buy insulin"? also, anyone have experience with the website https://www.canadianinsulin.com/ ? I thought ordering insulin online from out of country was illegal so im sketched out to use it?

Many thanks