Well, I'm glad you talked to us. It's good that you're doing your research before you commit to moving.
Imuran is on the subsidised list here, but you need to know that Entocort ISN'T. Chances are you may need to move over to Pred, unless you have a kindly insurance scheme, or stumble across a doctor who is able to convince the local hospital to give it to you for free. You'd need to be in a big, well-funded hospital for this, as well as lucky, and would need good reason to be on Entocort instead of Pred; e.g. dramatically reduced bone mass.
Rem / Humira will be tricky. If you were a public, local patient, you'd need to be on Imuran for at least three months, and still have a CDAI of at least 300, as well as a lot of other clinical documentation. I don't know what the procedures are for international residents, especially if they've started the anti-TNFs overseas before coming to Aus. We tend not to start treatment with these highly expensive drugs in Australia; we tend to start on pred and immunosuppressants, and only graduate up to the anti-TNFs if we're unresponsive to those older and cheaper therapies.
I think that this is something you'll need to discuss thoroughly with your doctor, Embassy and insurance company. Whatever they tell you, make them COMMIT and put it in writing, as you don't want to start Rem and lose access to it once you move here, and then end up reacting to it when you do go home and restart it.
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