If you have money, just invest in medical companies that produces atropine !
It will soon be very needed somewhere....

"Even at very low concentrations, sarin can be fatal. Death may follow in one minute after direct ingestion of a lethal dose if antidotes, typically atropine and pralidoxime, are not quickly administered.[4] Atropine, an antagonist to muscarinic acetylcholine receptors, is given to treat the physiological symptoms of poisoning. Since muscular response to acetylcholine is mediated through nicotinic acetylcholine receptors, atropine does not counteract the muscular symptoms. Pralidoxime can regenerate cholinesterases if administered within approximately five hours. Biperiden, a synthetic acetylcholine antagonist, has been suggested as an alternative to atropine due to its better blood–brain barrier penetration and higher efficacy"

[link to en.wikipedia.org]