The X-Files, Season 2

Mulder:
I think you're right, Scully.

Scully:
About?

Mulder:
What's been happening is the result of the medication, but not the medication the Doctor's been giving them.

Scully:
Mulder, mushrooms aren't medication. They taste good on hamburgers, but they don't raise the dead.

Mulder:
Shamans have used them for centuries to gain entrance to the spirit world.

Scully:
I think you've been reading too much Carlos Castaneda.

Mulder:
Ask any anthropologist then.

Scully:
I know --- a shaman gets intoxicated, he has dreams or hallucinations, and he interprets them. I don't think it's any more magical than that.

Mulder:
I don't know how else to explain what's happening here.

Scully:
Well, I think, if anything, these mushrooms are a poison to the system and I think that's what killed Hal Arden.

Mulder:
And raped Michelle Charters and killed those two orderlies? Something's been unleashed here, Scully. I don't know how to explain it, but it has something to do with those pills.