the increase in 6-keto pgf1 alpha output elicited by 3 nmol of ach or ape was inhibited by 10 nm of classical muscarinic receptor antagonist atropine or by the selective m2 beta muscarinic receptor antagonist 4- ( diphenylacetoxy-n-methyl piperidine ) methiodide ( 4-damp ) .
C0034826
muscarinic
C0384752
m2