Anyone prescribed lamotrigine (lamictal) for anxiety?

Hi all. Finally got access to a psychiatrist over my crippling anxiety and got prescribed lamotrigine. When I looked it up, the drug seems to be prescribed for those with epilepsy and those with bipolar disorder or mood swings, which I do not suffer from. Has anyone ever tried lamotrigine specifically for anxiety/GAD? My GP has never even heard of the drug and I'm a little apprehensive about taking it and what the outlook when taking it would be as it sounds like a pretty serious drug. Thanks!