[Natasha injects Tony]
Tony Stark: Oh God, are you gonna steal my kidney and sell it? Could you please not do anything awful for five seconds? What did she just do to me?
Nick Fury: What did we just do for you? That's lithium dioxide. It's gonna take the edge off. We're trying to get you back to work.
Tony Stark: Give me a couple boxes of that. I'll be right as rain.
Natasha Romanoff: It's not a cure, it just abates the symptoms.
Nick Fury: Doesn't look like it's gonna be an easy fix.
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From: Iron Man 2