Sure they'd work, but what with proesterone related gyno related to both Fina and Deca, it seems to me like that'd just be asking for it. Now, I may be wrong as there as been lots of debate lately about what exactly causes Fina gyno what with prolactin and progesterone in the picture. You may want to do a search on the combo of Fina/Deca... however, clen is pretty much a safe bet when added to any cutting cycle