Final answer:
Pilocarpine is the antidote for atropine poisoning.
Step-by-step explanation:
The antidote for atropine poisoning is pilocarpine. Atropine is an anticholinergic drug that acts as an antagonist to muscarinic acetylcholine receptors. Pilocarpine, on the other hand, is a muscarinic agonist that can counteract the effects of atropine by binding to and activating the muscarinic receptors.