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doi: 10.1164/ajrccm.159.2.9803089
Quercetin reduced the formation of N-acetyl-p-benzoquinoneimine, a toxic metabolite of paracetamol in rats and isolated rat hepatocytes

Once opened, use within 30 days
(Of note, Life Extension is the only one of our milk thistle recommendations that specifies silybin content.) Whats more, the company that makes Siliphos, Indena, has conducted a handful of studies on it, which we cover in greater detail down in Life Extensions dedicated section

you have problems or serious side effects from taking pain relievers or fever reducers
