Journal
EPILEPSY & BEHAVIOR
Volume 8, Issue 3, Pages 663-665Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.yebeh.2006.01.005
Keywords
hypersexuality; lamotrigine; epilepsy
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Purpose. Lamotrigine (LTG) is a novel anticonvulsant drug that exerts an antiepileptic effect by decreasing glutamate release through inhibition of voltage-sensitive sodium channels. LTG has no effect on serum levels of most female reproductive hormones, but its effect on male reproductive hormones still remains unclear. Improvement in sexual function after LTG treatment has been reported, and Could have been caused by reduction of seizures, inhibition of focal discharges, or an unknown effect of LTG on reproductive hormones and protein levels. Cases. Two male patients exhibited acute hypersexuality while taking lamotrigine as add-on therapy: one patient on carbamazepinc and one on oxcarbazepine. Neither prior history of psychiatric illness nor brain damage predisposed them to such a response to treatment, and in both patients, the hypersexuality was not a part of hypomania or a more diffuse psychiatric disturbance. In the first case, sexual hyperactivity resolved after discontinuation of LTG therapy without any concomitant treatment. In the second case, a reduction in the dose of LTG decreased the intensity of the hypersexuality and contributed to the patient's increased satisfaction with his sex life. Conclusions. Lamotrigine may cause drug-related hypersexuality by an unclear underlying mechanism. (c) 2006 Published by Elsevier Inc.
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