Nolvadex, IMO, is crap for gyno. Especially when using a 19-nor like Deca.

Your 3 choices are Arimidex, aromasin or letro. All three have their individual properties and strengths. For me, I prefer Letro...But I am sensitive and often use 19-nors.

Do a search on the board for those three and make an educated guess which one is appropriate for you.