To determine the convenience and satisfaction of new orally disintegrating tablet formulation (ODT) of lamictal in subjects with a mood disorder. This was a multicenter, open-label study in participants with a mood disorder, who reported difficulty or discomfort in swallowing the currently marketed IR compressed tablet formulation of lamotrigine and who had a person (such as a spouse, partner, companion, aid, nurse, caregiver, etc) willing to complete a Companion/Caregiver Question. Subjects were switched from the currently marketed lamotrigine IR formulation to a matching dose of lamotrigine IR orally disintegrating tablet (ODT) for 3 weeks to determine convenience and satisfaction.