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If you have light usage, do you need reduced toxicity?

Acetaminophen's effective dose is pretty close to the dangerous dose, but I would take light use to mean you take something maybe once a month max and only a single dose (or maybe even just one pill when the dose is two pills). At that level of use, I don't think you're at risk of anything.

Otoh, if the title is accurate and it can be more effective at pain release and less damaging to the liver, that would be great for people who experience pain frequently.