I have paracetamol in my medicine cabinet, I take it when I get a headache. What did they find out about it that's new? Is it dangerous or are they just talking about side effects?
Nobody "rediscovered" paracetamol - its side effects have been known for a long time. Doctors just remind people about them periodically because people treat it like a cure-all and take it like candy. The main thing is: it's toxic to your liver in overdose, and that damage builds up. If you take it rarely for a headache, there's nothing to worry about. But when someone pops a pill for any discomfort several times a day - that's already a problem.
Second: paracetamol masks pain but doesn't treat its cause. You took a pill, the pain went away, but if it's, say, a symptom of something serious, you might just miss it and delay getting diagnosed. Plus it's not that effective anyway - it doesn't help with inflammation unlike other painkillers, it just dulls the pain and fever a bit.
Third - this is more about long-term use: if you take it regularly for months, you can have problems with your kidneys and liver. But again - occasional use for acute headaches within your daily dose is usually safe. The important thing is not to mix it with other medicines that already contain it (a lot of pills do), and not to exceed the dose.
There's nothing new there, those are genuinely side effects that have been known for a long time. Paracetamol is harmless only if you take it rarely and in normal doses - the problem is that lots of people start taking it almost daily at the slightest pain, and that's when your liver can take a hit, especially if you're mixing it with alcohol on top of that.
If you've got paracetamol in your medicine cabinet and you grab it here and there for a headache - no problems, that's fine. The danger starts when people take it constantly instead of figuring out what's causing the pain or trying other methods.
Nothing fundamentally new was discovered there, that's true. But there's one thing people often overlook: acetaminophen is insidious because the gap between a safe dose and an overdose isn't that wide, especially if you're taking it regularly or combining it with other medications (it's an ingredient in tons of cold medicine combinations). Your liver accumulates metabolites, and problems might not show up right away - they creep up on you. If you take it occasionally for a headache, acetaminophen is perfectly fine, but if it becomes a habit, it's worth looking into alternatives.
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