Just revisiting my post, the girl who died taking 7.5grams was an adolescent, so perhaps I need to take that into account.
As a prescriber, I advocate paracetamol most days. It's a well tolerated, and mostly, effective medicine.
I'd never recommend any dose over the 4gms/24 hours recommended by the BNF. (and they are usually spot on.) If the pain isn't controlled then, it's time for an adjunct. Pilots, need to let there prescribers know they are pilots.
In the UK, we can only sell 8 grams at a time. This is a pain in the +rse if you get a lot of tooth ache, but the last figures I've seen suggest that about 200 lives a year are saved by this measure.