this post was submitted on 07 Jun 2025
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American here: I know paracetamol is acetaminophen, but how much is a packet?
It looks like it's a sheet of 6-8 pills
https://www.nps.org.au/news/paracetamol-ibuprofen-combinations-for-acute-pain
Depends on the country I guess.
Here, a packet is 16 tablets of 500mg (acetaminophen) or 200mg (ibuprofen).
We're limited to 2 packets combined per purchase to reduce the chances of severe overdose.
Package dosing generally suggests 2 tablets per dose, with at least 4 hours between.
Or one tablet for children between 10 and 14.
according to the acetaminophen i've got at home, dangerous dosage is >4g per day. that means that if 4 packets was 20x that, each packet would be 20g, which, if they're normal 500mg pills, would be 40 pills per packet.
you should stick to 3g a day if you’re overall a small person, some bottles will recommend this as the max to be safe
Therapeutic dose of acetaminophen is 15 mg/kg q6h prn. That dose of 4g/day ==> 1g/dose. 1000mg/(15mg/kg) = 66.67kg == 145lb.
That's the minimum weight for that acetaminophen dosing. If you're under that weight, you can consider the reduced dose. If you're over 145lb, no need to worry. And honestly, I think I'm the only one who actually doses this stuff q6h anyway. I think most people end up doing TID dosing because that allows uninterrupted sleep.
3-4000mg is toxic to the liver.
Well, generally you're only supposed to take ~2 tablets at a time, so 10? 40 pills a day is 13,000mg of acetaminophen, or 20,000mg if they're extra strength.
That's, uh, bad. You're recommended to take under 4000mg per day, so that'd be a bit over a packet? Makes sense to me.
For the record, mixing two painkillers without consulting a doctor is also usually a bad idea but way fucking less of a bad idea than taking 13000mg of tylenol in a day. Afaik, acetaminophen with other stuff is probably fine but napoxen, ibuprofen, and aspirin all work roughly the same way and shouldn't be mixed.
Basically, if something hurts so much that you might take enough paracetamol/acetaminophen to fuck with your liver then you yes, you should be under a doctor's care. That said, between my wife and me, we've had three or four doctors over the years all be very chill with the idea of alternating Tylenol and Ibuprofen after surgery or the like. I guess they work on such different chemical pathways that they don't have much interaction potential, and keeping under the daily dose of Tylenol in particular is incredibly important, as we've seen in this thread.
That's not always an option, unfortunately, but it's definitely accurate.
tyelonol works on the liver, the others like ibuprofen, naproxen,,,etc works by inhibiting the cox1 and 2 enzymes. of courses take 2 much of the inhibitors is very similar to aspirin, it can prevent clotting(which in itself is a therapeuthic uses for clotting disorders)
They act on different systems, yes, but this is more about the metabolism of each.
Non-steroidal-anti-inflamatorirs can cause damage to your stomach and kidneys.
Acetaminophen/Paracetol metabolizes in the liver a similar way alcohol does, and like alcohol has a maximum rate of clearing the toxin.
Don't take my word for it but I think paracetamol and ibuprofen with added codeine can be taken together despite the double codeine as the amount they have is low enough that double is still safe.
Check with a pharmacist first, dosages are going to vary and I am just some guy on the internet.
Reading the meme it seems like a packet is five times the dangerous dosage.