What is the Drug they took in Young guns 2.?!

Question:

What is the Drug they took in Young guns 2.?

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And they woke up the next day freaking out, and seeing things?

Answers: peyote. natural plant that causes hallucinations much like magic mushrooms. Peyote. peyote, i don't remember them ever going to sleep and waking up the next day though. It has been awhile since I saw the movie but i liked it.

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