title: Asthenozoospermia: possible association with long-term exposure to an anti-epileptic drug of carbamazepine.
abstract: Little attention has been paid to infertility in men with epilepsy and little information exists about the mechanisms by which anti-epileptic drugs affect spermatogenesis or sperm function. We report a case of a male infertility patient with asthenozoospermia during long-term treatment with anti-epileptic drugs. A 29-year-old man had continued treatment with anti-epileptic drugs under the diagnosis of epilepsy for 13 years. He and his wife had been examined and treated as an infertile couple for 3 years. The patient was found to have no motile sperm with a normal sperm count, while taking a dose of 400 mg/day of carbamazepine. On suspicion of an adverse effect of carbamazepine, he was switched to phenytoin monotherapy. One month after that, sperm motility was vastly improved (65%) and they conceived a child 5 months after that. One must be cautious in extrapolating from a case report, but these findings strongly suggest a direct effect of carbamazepine on spermatic function.
authors.affiliation: Department of Urology, Saitama Medical Center, Saitama Medical School, Kawagoe, Saitama, Japan. hayashi@saitama-med.ac.jp
authors.forename: Tetsuo
authors.initials: T
authors.lastname: Hayashi
authors.forename: Atsushi
authors.initials: A
authors.lastname: Yoshinaga
authors.forename: Rena
authors.initials: R
authors.lastname: Ohno
authors.forename: Nobuyuki
authors.initials: N
authors.lastname: Ishii
authors.forename: Shigeyoshi
authors.initials: S
authors.lastname: Kamata
authors.forename: Toru
authors.initials: T
authors.lastname: Watanabe
authors.forename: Takumi
authors.initials: T
authors.lastname: Yamada
mesh_terms: D000328:Adult; D000927:Anticonvulsants / Q000009:adverse effects*; D002220:Carbamazepine / Q000009:adverse effects*; D004827:Epilepsy / Q000188:drug therapy; D006801:Humans; D007248:Infertility, Male / Q000139:chemically induced*; D008297:Male; D013081:Sperm Motility / Q000187:drug effects*
chemical_list: D000927:Anticonvulsants; D002220:Carbamazepine