I have never heard of a nurse having a time limit on when she can give medications; that sounds like a decision your doctor should be making. When he gives you the prescription it has a dosage on it that includes when it should be taken (example: take 20 milligrams in the morning and take 10 milligrams no later than 3pm). It is NOT up to the nurse to decide. I would have your doctor write a note indicating that your grandson must be given his medication daily, and that taking it at 9 instead of 8 is better than not taking it at all.