This is not as easy as one thinks.

I was also an Onglyza user. When I was living in China, I refilled Onglyza in Hong Kong. Without a prescription, over the counter at a NON franchise pharmacy. It was about $ 100 USD for a three month supply. However - the meds were genuine but VERY close to expiry.

I went back to Canada, my family doctor (who has known me since childhood) gave me a script after cursory questions and interview. It cost me $30.00 CAD to see the doctor because I wasn't covered by medical anymore. He gave me a refillable script so it helped me for a year.

Cost was under $1,000 CAD for a year supply - I think (from memory - I could be out)

There is no way to purchase Onglyza in Canada, that I am aware of, without a Canadian script from a Canadian doctor.

If the OP finds a way, it would be great if he can post it.