4-DAMP
# 4-DAMP

4-DAMP (1,1-dimethyl-4-diphenylacetoxypiperidinium iodide) is a selective muscarinic acetylcholine receptor (mAChR) $M_3$ antagonist. It is also able to antagonize $M_1$ receptors but "prefers" $M_3.$ It competitively binds to the acetylcholine binding site on mAChRs, causing right-ward shift in the dose response curves for mAChR agonists.

