dizziness, ataxia, fatigue, drowsiness, skin reactions, headache,
dry mouth, nausea, vomiting, edema, fluid retention,
AND increased weight. More information about this drug can be found in this link:
http://www.mims.com/Page.aspx?menuid=mng&name=Tegretol+LA+film-coated+tab&h=tegretol
If you are bothered by the weight gain, you can always go to your doctor and ask for alternative medications.
I hope this helps. Take care and regards.