Interesting, that sent me down a bit of a Wikipedia rabbit hole, which took me to this interesting quote: "there is no antidote or remedy for DNP once taken. In consequence, DNP has a high mortality rate — of those who presented at hospital between 2007 and 2019 with a history of having taken DNP, 18% died. This puts DNP close to cyanide in terms of its toxicity."

So that means that only a fifth or so of people who went to the hospital after taking cyanide died! Surprisingly low...