A dopamine antagonist isn't going to help probably.
I would suggest getting bloods to see what the issue is and have prolactin checked. It COULD be the gh but, prolactin induced gyno from gh is very very rare.
I get tender and sore nipples on most any dose of AAS but it's not gyno related. Some of us have that reaction to elevated hormones in general.
Also, dopamine antagonistic drugs can have a lasting effect on your personality and emotions so, I don't recommend them unless they are absolutely needed which they usually aren't.