A doctor prescribed my 2 year old a half tsp of rondec dm syrup every 4 to 6 hours as needed is this a safe dose?

Cough medicine: Cough/cold medications do not help relieve the symptoms they are meant to take care of. In short, they are useless for children below 6 years old. In addition, the child is exposed to bad side-effects from them like drowsiness, irritability, hyperactivity. Best medicine is lots of fluids, saline for the nose and possibly a cool mist humidifier in his room.. Try honey for the cough.