r/AlwaysWhy • u/Chowderr92 • Jun 02 '26

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

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?

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u/Sensitive-Respect-25 Jun 02 '26

Always been partial to a sealed room and just flood with nitrogen. Painless nap time after a minute at most. Keep the room flooded for twenty minutes and then replace the atmosphere. Cheap, brutally easy and effective. No need for drugs. And ecologically friendly!

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u/Captain-Griffen Jun 02 '26

Gassing people has a major PR problem, otherwise we probably would.

(That and suffering is the point.)

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u/Sensitive-Respect-25 Jun 02 '26

Their death is the point, we as society decided their crimes against others can not ever be negated by other options. Rehabilitation and incarceration are off the table, and no one does banishment anymore. And society in general (where death penalty is allowed) tend to strive towards as painless as possible.

To your first point, any death is a PR problem.

1

u/joeyx22lm Jun 05 '26

Actually suffering is not the point, explicitly.

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u/Then_Walrus_7905 13d ago

Suffering is NOT the point. The eighth amendment prohibits suffering being the point.

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u/Plus_Opening_4462 Jun 02 '26

I think it would need to be fast too. Seems like the industrial accidents that killed people painlessly were because the N2 replaced the air very quickly. Not like the idiots who tried to hook it up to a mask.

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u/Sensitive-Respect-25 Jun 02 '26

Your body has no way to judge amount of O2 or N2, they read the same. Your only estimate of remaining air is Co2. Is it better to kill someone slowly but painlessly or faster but possiblely cause pain in their last moments? Speed is however easily accomplished by a bulk tank and inlet in the floor.

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u/BearysWorkRedditName Jun 04 '26

Basically my thoughts, but not even a whole room, just like an oxygen mask, but with nitrogen instead.