My 4 yr old son was prescribed promethazine dm. 5 ml every 6 hrs as needed.
I looked up the doe here and it seems the dosage is twice as much as recommended! How long until I can give him another dose (1/2 as much). As in, how long does it take to metabolize and it is safe to give again?
It is working well for his terrible cold, but he was (understandably-he was overdosed) very tired while taking it which is why I checked the dose online