I live in Florida and with the past year's situation with armour thyroid, I and many (probably tens of thousands of) people have been using Canadian pharmacies LEGALLY to get their natural dessicated thyroid (the Canadian version of armour) sourced. We simply fill out our prescription information on the pharmacy's online site ordering, fax our prescription to the pharmacy and w/in ten days, receive our medication (usually). I and many others have reported using Universal, they have proven to be very reputable. Although there are pharmacies out there working w/o a prescription, I would never advise that- I guess I am not that trusting. However, I have heard of known working w/o a prescription from Canada.
Here is a link to Canadidan pharmacies, pricing, comparisons, etc.