An over-the-counter antihistamine called clemastine has been shown to reverse damage to the myelin sheath caused by MS (allergy, medical)

[Submariner]

An over-the-counter antihistamine called clemastine [Brands: Dayhist, Dayhist Allergy, and Allergy Relief] has been shown to reverse damage to the myelin sheath caused by MS [multiple sclerosis].

https://newatlas.com/medical/antihis...nerve-damage/?

[mike1003]

I retired as a pharmacist 7 years ago and never sold that product even though it has been available since I was in college