Solifenacin D5 hydrochloride is a deuterium-labeled Solifenacin hydrochloride, which acts as an antagonist of muscarinic receptors with pKis of 7.6, 6.9, and 8.0 for M1, M2, and M3 receptors, respectively.
Terodiline hydrochloride is an antagonist of M1-selective muscarinic receptor (mAChR)(Kbs of 15, 160, 280, and 198 nM in rabbit vas deferens (M1), atria (M2), bladder (M3) and ileal muscle (M3), respectively).
PCS1055 dihydrochloride is an effective, selective, and competitive muscarinic M4 receptor antagonist (IC50: 18.1 nM and a Kd: 5.72 nM). PCS1055 dihydrochloride is also a potent AChE inhibitor (IC50 s: 22 nM and 120 nM for electric eel and human AChE, res