There is little or no need to stack secondary drugs with finaplix. It does not aromatize. There is some concern as to finaplix being progestagenic, so should you opt to stack it with an aromatizable compound it may worsen potential gynocomastia so adding Nolvadex, to such a stack may be wise. But in itself or in a non-aromatizing stack this is not necessary. The use for post-cycle estrogen antagonists is limited as well, so Nolva or clomid to boost natural test will have little use. It is a very strong androgen receptor agonist however, so perhaps using some HCG after a cycle may help you retain more gains and prevent testicular shrinkage, but since HCG does increase estrogen that does reinstate the use of Nolvadex or clomid as well.