Lex Talionis

Lethal Injection, a three-shot cocktail,

If done correctly, works without fail.

Sodium thiopental, makes you comatose,

Especially at such a high dose.

Pancuronium bromide, the paralytic,

Would be grand if you’re arthritic.

Which brings us to potassium chloride,

Adios, farewell, au revoir, you died.