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Very limited basis for the study
This takes us back to the question, "How many men would give up Viagra if it could result in cancer diagnosis or cancer recurrence for them....?"
I'm not at all convinced by a study composed less than 10 humans, and since it involves only Vagifem I wouldn't be convinced it applies to other products such as the Estring, either.
Other studies have shown no discernible systemic effect.
There is a new product in phase III clinical trial now for this problem that is not estrogen and in fact may have other beneficial qualities for cancer patients, but participation is limited to those with VERY distant cancer history if any, so its use for most of us would also be largely undefined.
A.A.
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