After about 3 months on BAT therapy and reading Friedman's book, I thought it might be a good idea to ask my onc to check my estradiol (E2) levels. He agreed.
While the PSA continues to drop (roughly 10 to 5), I nearly s*** a gold brick when he casually mentioned my E2 was 170 (normal is about 20-40). This is despite strong doses of DIM and broccoli sprout tablets. (So much for the "natural" approach.)
Anyway he in a calm oncologist voice said, "Your body is a really efficient converter of T to E2." Then he wrote a script for Armidex without hesitation.
Bottom line - Get your E2 levels checked when on BAT!
PS I do recommend "How Your and Your Doctor Can Fight Prostate Cancer, Breast Cancer and Alzheimer's" by Dr. Edward Friedman. I suspect many in the SOC camp may not be a fan, but I do think there is merit there in his theory about the role of E2 and PCa.
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Arthur479
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Makes me more vulnerable to a strong PCa rebound or as Friedman puts it "disastrous results" (I think (hope) he is being overly dramatic.) For a technical description, the book is the way to go.
That I don't know. I have requested on my next blood draw that T levels be assessed. Don't want that going nuts and getting a damn blood clot. Wouldn't it suck to have a stroke while knocking out prostate cancer?
When T goes up so does E2. But when it goes down so does E2. So at the end of a cycle its back to near normal. But a couple of days after a T shot when T is max, E2 looks pretty scary.
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BAT (Bipolar Androgen Therapy) 
BAT therapy - NIH article
Bipolar Androgen Therapy (BAT) and CRPC
E2 Patch
