@cclaus Welcome to Mayo Clinic Connect! And you are worried about your husband. He is currently on a pill to stop progression of what disease? Do you know the name of the pill? When did he start taking it? Did the weak legs and double vision start when he started the pill? Does he take any other medications? I’m asking all these questions because your doctor will ask similar ones. Has your husband seen the doctor lately? If yes or no, I think you should make an appointment soon.
@cclaus , we would love to help you but we need more information about his condition and medicines. Will you help us?