Estrogen/aromatase blockers to prevent gyno from fin/dut/spiro

[25 going on 65]

I have read that e blockers like tamoxifen or aromatase blockers like Armidex should not be taken long term. However I do not understand why this is. Is anyone here educated enough on this to explain why this would be dangerous? Because otherwise it seems like possibly a way to protect against feminization from spiro especially

Edit- I understand the increased risk of osteoporosis, cognitive impairment, etc but does the risk necessarily get worse the longer you take it? Is it not just a case where some people are prone & others are not, like w/ fin (ie if you do not have sides in the first 1-2 years you are typically in the clear)?

[whatsgoingon]

It's just another drug you're adding that will remove sex drive. Extended use you'd probably have to ask a transsexual forum, as they would have more experience in that area.