I've been on Invega Sustenna for the past 2 years and my prolactin levels are sky high. I saw an endocrinologist and she is going to prescribe birth control so my menstral cycle comes back and regulate my hormones. Is there anything I can take to lower my prolactin levels? She didn't prescribe anything else. Maybe something over the counter? My biggest concern is losing the 50 pounds I've gained from Invega. Luckily my pdoc finally took me off this med and put me back on Lithium.