My doctor actually suggested using a Canadian pharmacy when I was looking for lower cost drugs. She said that the Canadian pharmacies are just as strict, if not even stricter than the US, in their regulation of drugs and drug ingredients. I didn't use them because I needed the drug right away and couldn't wait for the out-of-country processing. I've found that Walmart seems to have the cheapest drugs around here -- even cheaper than Costco, where I was previously getting them. AND - the Walmart pharmacists are very knowledgeable and helpful and courteous when it comes to getting questions answered. I had to have surgery a few years ago, and since I am allergic to many pain meds, I had to have a long discussion with the pharmacist to decide what drug to tell my doctor I could take after the surgery. It all worked out perfectly for me due to the pharmacist's knowledge about "minor" ingredients in some of the pain meds.