Putting a SHORT version of your recent history of reducing or discontinuing drugs in your signature, with the drugs you are currently taking, when you started taking them, and their dosages, helps people understand your context when they read your posts.
Your signature appears under all your posts.
If your drug history is very long, the last few years will do. FOR READABILITY, SHORT LINES ARE BEST.
A list is easier to understand than one or multiple paragrap