I'm aware of acetaminophen's down sides, and yet recently I was taking it combined with 2 other medications at the time.
Why? Because all three medications are recommended for dealing with the issue I had. (Alone and in combination)
The moment it wasn't helping further? Done.
There is this broken idea, particularly apparent in North America, but in western society that more is better for many things. It's not.
More pain killers don't do anything if they max out the relief they can give you, overloading their mechanism doesn't reduce anything, but taxing your liver or your kidneys.
All medications are potentially toxic, your body wants to dispose of them. In appropriate dosages they will benefit you, but more isn't inherently better.
Even water can kill you in sufficient quantity.
We do the same with diet; where someone declares one ingredient in a meal healthier than another; it isn't. A single ingredient isn't better or worse for you in a meal. Your diet however can be good or bad; over time that matters.