The medication used in the Testosterone Protocol, Enclomiphene, maintains or improves the Testosterone:DHT ratio, so it shouldn't negatively impact prostate function.

While we do not treat BPH, there is a patent for using enclomiphene (aka trans-clomiphene) for the treatment of BPH from the original pharmaceutical company that developed it:

https://patents.google.com/patent/US20080242726A1/en