I thought Marshall simply added caffeine to the compound that counteracted the halothane's effects just to give them a jolt? I could be wrong though.

I htink Marshall mentioned caffeine as a metaphor. He's trying to say that if you use his antidote, it's like taking caffeine because you won't fall asleep. Anyone have the exact transcript of that part of the show?

I believe he said he put in something to counteract the halothane PLUS he put in caffiene, so there'd be no way they'd fall asleep.

I thought it was a really good episode, as usual.

I especially liked the hospital scene. Some cool kicks from Syd. And a good amount of gunplay. The Lara Croft two-gun thing was very cool.

I might've misheard then. I thought he was saying he used some time-release caffeine capsule like he uses in his own drinks. Plus, I could be wrong, but there's nothing I know of that can counteract halothane, but I'm not an anesthesiologist.