This ‘Stop MS’ lecture is about Metformin (a very common diabetes drug) and how, taken with other very common drugs (T4, miconazole) it can produce re-myelination. The reason people with MS get more disabled (get progression) is because their cells stop re-myelinating. This means these drugs may stop, slow or even reverse progression.
The lecture is here
The really interesting bit is at 33:33 but if you watch the whole thing, you’ll see the lecturer (Prof Robin Franklin) say that the results they got were the most exciting thing he had seen in 30 years of lab work. Exciting to me - these are drugs available right now, to all of us.