Hello dowman,
Welcome to the NeuroTalk Support Groups.
You could check out the
Movement Disorders Forum
There is also a forum search feature that enables us to type in keywords and finds older posts and threads. You could try that with the name of your medication or even just the term ataxia or episodic ataxia.
http://neurotalk.psychcentral.com/search.php
Let us know if you need any help.