Terodiline hydrochloride is an M1-selective muscarinic receptor (mAChR) antagonist with Kbs of 15, 160, 280, and 198 nM in rabbit vas deferens (M1), atria (M2), bladder (M3) and ileal muscle (M3), respectively. Terodiline hydrochloride also is a Ca2+ blocker. Terodiline hydrochloride acts as a treatment for urinary frequency and urge incontinence.IC50 & Target: mAChR
Ca2+ channelIn Vivo: Terodiline (80 mg/kg; S.C.) is equipotent in inhibiting intravesical bladder pressure and carbachol-induced salivary secretion (ID50= 24 and 35 mg/kg, respectively), and in increasing pupil diameter (ED50=59 mg/kg).