<prompt> Atropine is useful in organophosphate poisoning because itReactivates AcetylcholineesteraseCompetes with acetyl chloline releaseBinds with both nicotinic and muscarinic acetylcholine receptorsIs a competitive antagonist of acetylcholine  <response>: Atropine acts as an antagonist at muscarinic receptors. It has no activity on nicotinic receptor and do not interfere with the release of ACh Ref-KDT 6e p106 