the anticholinergic activity of l-634,366 was lower and more selective than that of pirenzepine or atropine in producing mydriasis in mice , in antagonizing acetylcholine induced bradycardia in guinea-pig atria , methacholine and acetylcholine elicited contractions in the guinea-pig ileum and qnb binding to muscarinic receptors .
C0004259
atropine
C0026961
mydriasis