Depends on the dose.
In Vietnam, some grunts used to get high using their atropine injectors.. (not recommended.. highly dangerous)
Ever heard of "Locker Room" ??
It was a deodorant/ room freshener.. contained atropine..
People used it to get high before it was taken off the market.
Remarkably effective in getting rid of tobacco-marijuana smell in the high school bathrooms..
We use atropine in our ICU's to treat symtomatic nonjunctional sinus brady. (supresses vagal nerve) to speed up the heart. Atropine and some neuroleptic drugs(since they are atropine related) have atropine side effects,(psychosis, flushing, rapid heart rate, jittery "cogwheeling" motions and ataxic gait) If left to continue death could occur and/or more likely tardive diskinesia where the nervous system becomes permanently damaged.(sounds like a gas attack doesn't it? well that's the thing, you counter a very toxic agent with another very toxic antidote and the nervous system exists in tenuous equilibrium between the two, then you may have to add cogentin for the side effects of the antidote.)
I understand, unless IIBUSH or Texasflower have better info, that our soldiers in Iraq are given low daily doses of drugs to help counter any sudden attacks of nerve gas in addition to the antidote kits they are given(as well as their protective gear). What I'm not sure about is repeated assaults regarding gas and the availability of antidote doses in an on going battle scenario battle...though I'm sure the protective suits would have been donned. I, as a civilian, only know the same info as the other civilians as to sustainability in the field.
I have seen what atropine and atropine related drugs to however!