Jacqueline
The change in medication cannot be considered by either the DWP or your Tribunal panel, they can on look at your situation as it was on the date of the Decision that you are appealing.
You could report a Change of Circumstances but that will result in a new PIP2 being issued and almost certainly a face to face assessment. The new Decision will supersede your existing award whatever it is or might be following the appeal.
Gordon
Nothing on this board constitutes legal advice - always consult a professional about specific problems 
