Answers (1)
This is possibly an overdose but it depends on how old & the weight of your son max daily dosage is 12 mg/kg/day. (given in 3 mg/kg dosages). It is a sedative and respiratory failure in extreme overdoses possible.
I will say that this is not the place to seek or accept reliable advice & suggest you contact a doctor for real safety ( I am answering reluctantly here as no one else has & do not wish to take the responsibility of not). If you are in the UK try below
UK National Drugs helpline: 0800 77 66 00
Hope this is of some assistance
With respect the other good people here who selflessly give their advice & time,
This is maybe not the place to seek or accept reliable advice on medical a matters of such urgency & seriousness.
As a father, I do feel obliged to help, support you as you must be worried sick.