Phenacetin

What the body turns Phenacetin into, as its Wikipedia article records it.

Quoted from Wikipedia, not yet written up by hand. Its infobox gives no timings, so this shows only what the article text says it turns into.

hoursfrom the article text
What else it turns into
“Paracetamol is a metabolite of phenacetin with similar analgesic and antipyretic effects, but the new formulation has not been found to have phenacetin's carcinogenicity.” ¹

Source

Half-lives vary between people, doses and routes. This page explains what the body does with a drug. It is not dosing advice.