Do you mean Novadex XT, or do you mean Nolvadex, i.e., tamoxifen citrate? Everyone here is advising you under the assumption that you mean tamoxifen, but given that you're consistently calling it "nova" and not "nolva," I'm guessing it's the former.
If that's the case, you need to get yourself nolva, or at least Rebound XT...
-kwantam