Should there be some performance drugs in Penumbra?

[Somalion]

I was just thinking that should Penumbra: Overture have some drugs that temporarily boost your overall performance in game (like adrenaline shots)? That would make it possible for Philip to move a little heavier objects or run faster than before (I don't suggest about making him into some kind of superhuman with them) but they would have some drawbacks like a headache (can't see as clearly for some time) or something else like that.
I think it would be a nice addition. What do you guys think?