Any addictive drugs that slow movement later in life?

Hard to say. Stephiebelleiz, your question isn't very clear. Are you asking if you now have muscle slowing and you used to use opiates or certain tranquilizers? If so, there's probably no correlation. I will say that people who used crack Cocaine or methamphetamine may have permanent brain changes. Sounds like you need to talk to a doctor face-to-face rather than online. Good luck.