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by meew0 52 days ago
Metamizole is an amazing drug, I'm always grateful that I work and live in an area where it is available.

But it is not a miracle drug. Metamizole-induced agranulocytosis absolutely exists, and the insidious thing is that you don't know in advance if you will get it or not. You're trading common but avoidable side effects (ibuprofen, APAP/paracetamol) for rare but unavoidable ones (metamizole).

I've seen patients with severe side effects of all three classes of non-opioid painkillers (severe GI bleeds from ibuprofen-induced ulcers; acute liver failure from APAP overdose; metamizole-induced neutropenic fever). None of them seemed very pleasant. But if I had to choose, I'd still use APAP first line because it's the only one where you can avoid the severe side effect with certainty, by simply staying under the recommended maximum intake.