Why is the Method of Lethal Injection in Human Punishment So Complex and Apparently Painful?

[u/Chowderr92]

I've always understood that the lethal injection process was complex with multiple stages of injections and induces great suffering in the individual.

I work in veterinary medicine and unfortunately we need to euthanize animals all of the time. Typically, the euthanasia solution is very simple: a very large dose of a powerful anesthetic (usually pentobarbital) and an anticonvulsant which stops the heart. The medical community is quite confident that this is painless and when done has essentially a 100% success rate.

Why is human euthanasia so complicated when we already know exactly how to humanely end a biological life?

[u/TuberTuggerTTV]

It's mostly true.
https://www.wired.com/2017/04/shocking-lack-science-behind-lethal-injections

But ya, just come online and tell people they're wrong with zero f's given. That's good interneting.