I usually need to do the paracetamol / ibuprofen chaser 30 minutes later if DS is running a high fever, (for him anything over 38 as he has a usual 36), and panadol alone never seems to bring his fever down. But I take his temp 30 mins later and see if it is heading down, and if it is I will leave it at that. But I generally know DS need the extra ibuprofen help, as he will be crying and clinging to me...

I only use paracetamol for a fever though, and the ibuprofen is locked away and only used in emergencies...