Indeed, paracetamol (as most of the world calls it) is highly toxic to many species - while people have a small tolerance to it, there are many documented cases

Indeed, paracetamol (as most of the world calls it) is highly toxic to many species - while people have a small tolerance to it, there are many documented cases of people suffering fatal liver damage through doses only just above the maximum daily dose of, typically, 4g. Domestic cats can die from simply licking tablets due to their extreme sensitivity - which sounds more sensitive than snakes, making them not 'unique' either. I'm extremely sceptical of a claim of '500' published in that context - to the point of thinking that sounds positively reckless and liable to make people take extremely dangerous doses in the belief that huge numbers are needed to present any risk. In the UK, packages can only be purchased in maximum quantities of 16 tablets and maximum 2 boxes per purchase to reduce the risk of both accidental and deliberate overdosage (with a significant decrease in overdose incidents as a result).