Yes because it is non steroidal - so while it can feminize you, you can’t track your levels. In fact, my idiot doctor who rxed ne thought I had CAH when I started taking Flut.
500mg is the standard dose. Maybe too much. I couldn’t tolerate it so I would drop to 250 - then experience a massive shed / breakout and titrate up. It’s superior to spironolactone for sure, but with that said spironolactone won’t elevate your androgens thiiiiis much. Maybe flut with some e could help that reflex but it’s otherwise given to cancer patients who have taken GNRH analogs