I'd save Creatine for PCT. You won't even notice gains from Creatine while on PP, because the steroid is so strong.
You already need 1-2 gallons of water just from being on PP alone...Creatine dehydrates you, so you would even have to add more water to the water intake already...
If it was me, I'd save it for PCT...because personally, after I've been off of creatine for a while, then jump back on, I react a lot better...why not shock your body with the Creatine intake on PCT, and maintain your gains from the PP a little easier?
If you go ahead and take NO-xplode while on cycle, monitor your BP closely. What are you taking supplement wise for BP values?