Quote:
Originally Posted by O.city
Sympathetic use in my understanding is more when you’re at the end of the line they can try anything
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This is essentially correct-- though it's "compassionate use".

If a patient does not respond to (or loses response to) or cannot tolerate all existing therapies, doctors can (with the consent of the manufacturer, in my experience) grant use of medications
not specifically approved to treat that disease (and it gets even more precise than that, but that's close enough) on a compassionate use basis. In this case, since there are no known drugs, until and unless (a) (hydroxy)chlorquinine is approved in this indication, or (b) something else is, all (hydroxy)chloroquinine prescriptions would be on a compassionate use basis.