yes mate, there certainly is. believe me, old habits die hard, thats the only reason people still use nolva for on cycle oestrogen control. its far from suitable for this purpose. your best bet is arimidex, start at .5mg e3d at the first signs of oestrogen related sides. adex actually stops the testosterone aromatising into oestrogen in the first place, as opposed to nolva, which just competes for the receptor site, leaving all the oestrogen bouncing around in your system waiting to rebound.