Question: What was the mixture that Mississippi gave to JP Harra?
Charles Austin Miller
31st Mar 2017
El Dorado (1966)
Answer: It was an old folk remedy for a hangover. It was supposed to make someone unable to drink liquor for a short period of time. The fictional potion's ingredients were not specified.
The ingredients of Mississippi's hangover concoction are very surely in the scripted dialogue. Mississippi: "Johnny Diamond had a recipe. Let's see. Cayenne pepper, mustard-the hot kind, ipecac, asafetida, and oil of cloves or was it? No, it was croton oil." Bull: "Croton oil?! I'll be a suck-egg mule. You know what that mixture'll do to a fella?" Mississippi: "Guaranteed kill or cure." The final ingredient is gunpowder.
Answer: Croaking oil, gunpowder, hot mustard, ipecac, asafetida.
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Answer: The prime ingredient was Ipecac, a nausea-inducing compound (still used today) which so inflames the stomach lining that it's impossible for the patient to hold anything down. Hot mustard in large doses has a similar effect. The other ingredients (croton oil, cayenne pepper, etc) acted as powerful laxatives, so the entire gastrointestinal tract is evacuated in short order. The gunpowder was a fantasy ingredient, no doubt, as gunpowder is known to cause gangrene of internal tissues.
Charles Austin Miller