This toxicity is more commonly described in felines and rarely in humans after acetaminophen poisoning.
In a recent case series by Rianprakaisang et al., two patients without a known history of G6PD deficiency had methemoglobinemia after large overdoses of acetaminophen.(Rianprakaisang T et al. Methemoglobinemia associated with massive acetaminophen ingestion: a case series. Clin Tox 2019 https://doi.org/10.1080/15563650.2019.1657883)
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