A careful frame
Multiple sclerosis involves more than one pathway.
Multiple sclerosis is commonly understood as an immune-mediated disease affecting the central nervous system. Inflammation, damage to myelin, injury to nerve fibers, and the body’s limited capacity for repair can all matter, although their timing and importance differ from person to person. The National Institute of Neurological Disorders and Stroke overview of multiple sclerosis describes the condition as involving immune-system damage to myelin and nerve fibers in the brain and spinal cord.
That complexity is why a simple “one compound, one solution” story does not fit the biology. This page considers hypotheses around ibogaine and related alkaloids, while the broader evidence-first overview of ibogaine and MS keeps the central question in view: whether there is meaningful human research showing benefit. There is not a clinical evidence base demonstrating ibogaine as a treatment for MS.
Some proposed mechanisms arise from laboratory work on receptors, growth factors, inflammation, or neural repair. Those ideas may help explain why researchers ask questions, but they do not establish efficacy, appropriate use, or safety for any individual.