My family doctor in Italy strongly recommended taking 0.3-0.5mg of melatonin maximum saying that more won't have a good effect and risks having bad effects such

My family doctor in Italy strongly recommended taking 0.3-0.5mg of melatonin maximum saying that more won't have a good effect and risks having bad effects such as drowsiness the whole day after waking up. And yes, in Italy most melatonin you'll find in pharmacies is <=1mg.