Receiving MS treatment abroad

Does anyone know where to find a list of countries where access to MS treatments is covered by the local national health service?

The NHS does a great job here, but it is not always clear what countries provide the same service (Australia, for instance, I understand has a Reciprocal Health Care Agreement with the UK, which allows access to MS medicines dispensed at a government-subsidised price).

Local government websites are probably the best source of information, but I was wondering if any ‘globetrotter’ ever got around to do this kind of “research”