depends on what you are using. For those with prexisting gynecomastia and flare-ups, generally reccomend exemestane or letrozole WITH at least low dose pramipexole or cabergoline (if using progestins or methylated steroids STRONGLY reccomend).
for exemstane, letrozole and pramipexole
reccomend
www.researchstop.com
for cabergoline, reccomend cabaser tablets (cabergoline liquid is unstable, and generally bunk or completely degraded) from aurapharm.