Not in the paper, but Ron gave a talk where he mentioned an MS drug (I have forgotten which) and a new drug that targets mitochondria which is not yet licensed for anything.

Sorry I can't be more specific. I don't remember the details.

No. They are intentionally keeping that information secret to prevent people from trying to self-treat with it before more studies have been done.

SS31, copaxone and suramin.

Suramin is used for African sleeping sickness. They found that African sleeping sickness closely resembled CFS in terms of gene expression.