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In his study of 87 women with localization-related epilepsy who charted their seizures in three menstrual cycles, Dr. Andrew G. Herzog astutely identified that 39% of the women "showed one of three predefined catamenial patterns" ("Look for Catamenial Epilepsy Pattern," March 1, 2005, p. 29).
However, Dr. Jose E. Cavazos failed to note that the treatment for catamenial epilepsy might by danazol to suppress the cycle.
A patient of mine reported grand mal epilepsy for 8 years, occurring every month within a few hours of the onset of menstruation. For years, she saw a host of neurologists and remained unresponsive to every antiseizure medication. When I treated her PMS and menstrual migraine, she became seizure free and has remained so for 22 years on 800 mg of danazol daily. Danazol, by suppressing the estrogen rise and fall in the luteal phase, may control these late cycle seizures by the same biochemical mechanism that I documented in the control of the most severe menstrual migraine (J. Reprod. Med. 1991;36:419-24).
By using clomiphene days 5-9, Dr. Cavazos may trigger a greater estrogen rise and subsequent fall and may potentially worsen the seizure disorder (similar to increasing estradiol in women with migraine).
Edward M. Lichten, M.D.
Del Mar, Calif.
Dr. Cavazos replies: