A muscarinic acetylcholine receptor antagonist (Kis = 1.4, 2.7, 3.6, 3.1, and 2.2 nM for M1-5 receptors, respectively); reduces carbachol-induced intracellular calcium mobilization in bladder smooth muscle cells and submandibular gland cells isolated from cynomolgus monkeys (Kis = 3.16 and 2 nM, respectively); inhibits volume-induced bladder contractions and oxotremorine-induced salivation in rats (ID50s = 0.025 and 0.12 mg/kg, respectively)