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Neurology (Expert Forum)
Topamax and Estrostep intercation
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Topamax and Estrostep intercation
by Ryan, Oct 17, 2000 12:00AM
I know that Topamax does not affect the clearance of noethindrone, BUT it does effect the oral clearance of ethinyl estradiol to a certain extent. My wife is taking 75mg/day of Topiramate (as a migraine preventative - Dr. Diamond prescribed)and the Estrostep dosage is 20 mcg, 30 mcg and 35 mcg of ethinyl estradiol.
Is this dosage of Topiramte low enough such that the clearance of ethinyl estradiol is not affected, or are their signs we should look for (i.e. break through bleeding) that would indicate the efficacy of birth control is being comprimised?
Is this dosage of Topiramte low enough such that the clearance of ethinyl estradiol is not affected, or are their signs we should look for (i.e. break through bleeding) that would indicate the efficacy of birth control is being comprimised?
Doctor's Answer
by CCF Neuro[P] MD, RPS, Oct 17, 2000 12:00AM
