it depends of what kind of ph's u are taking.. but for this one you should cycle it 6 weeks I.M.O i think nobody cycle dienazone for just 4 weeks.. cuz dienazone kicks in slowly u will notice thing star happend on second week.. but nanodrol kicks in very fast 
Week 1: Dienazone 2ml ED, Nanodrol 2ml ED
Week 2: Dienazone 2ml ED, Nanodrol 2ml ED
Week 3: Dienazone 2ml ED, Nanodrol 2ml ED
Week 4: Dienazone 2ml ED, Nanodrol 2ml ED
Week 5: Dienazone 2ml ED
Week 6: Dienazone 2ml ED
there u go again..