post cycle... you want to take both an ai(arimidex) and a serm(nolva). but you can take ANY ai you would like, and you need to be taking CLOMID post cycle, not nolva .
ON cycle, nolva or arimidex... in my opinion arimidex is the better choice. BUT, for those who are really worried about negative health effects of steroids; they would be better off using nolva, since ai really fuck with cholestrol levels, while serm actually help them i believe. BUT, for results, arimidex dosed correctly for your own body is going to yeild better cycle