Oh my, this sounds like paranoid schizphrenia at the very least. If a person refuses to get medical help and therapy for issues, you are simply enabling him to continue doing what he's done in the past. He's obviously not good for you, but if you stay and enable this action on his part, you are not good for him either.
This is abusive behavior. Abuse can be verbal and emotional as well as physical and You should not tolerate this in Your life. You say You have been together for 14 years. How long has He been making these accusations ?? Which one of You is taking medication and are You suggesting this is related somehow to adderall ?? Regardless, of who's taking medication, it is not acceptable for Him to accuse You in this way and You don't have to tolerate this abuse. I know it's not easy to walk away from such a long term relationship but sometimes it's the necessary thing to do - unless He's willing to realize He has issues and is willing to get counseling.
Good Luck
I agree. And we date for a reason. We are supposed to judge the people we date to see if we would want to take the relationship to the next level. This is one that you clearly should not. I'd go ahead and cut your losses and find a more stable guy. good luck
He sounds like a total nutjob. This is no way for you to live. Are you able to get away from him? Do you have somewhere else to go? Friends or family? You can't stay with him. There is definitely something very, very wrong with him mentally and this is not something that you can fix. This relationship honestly can't continue and you need to get as far away from him as soon as possible.