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by stjohnswarts 1665 days ago
Basically the same as warnings on medications. They list almost every known symptom without any sort of probability so they're almost useless.
2 comments

They don't list symptoms, they list things that happened in the study population in clinical trials. Which is why every medicine has headache and nausea as 'possible side effects'.
In the EU, the symptoms are listed under headings like "More than 1 in 10 people had this" "Between 1 in 10 and 1 in 100 had this".

e.g. for the Moderna Covid vaccine, PDF, see "Possible side effects": https://www.ema.europa.eu/en/documents/product-information/s...

(I looked up St John's Wort, but its assessment doesn't have this. Possible because it is from a long time ago.)