Lamotrigine in the treatment of SUNCT syndrome.

Short-lasting, unilateral, neuralgiform headache attacks with conjunctival injection and tearing (SUNCT) is considered an intractable condition. The authors treated five patients with lamotrigine (125 to 200 mg daily), obtaining a complete remission in three patients and a substantial reduction (about 80%) of attack frequency in the other two. No adverse effects were noted.