Temiverine hydrochloride is a synthesized drug that is expected to have anticholinergic action.
Atropine (1 nM to 1 μM), Oxybutynin (10 nM to 10 μM), Temiverine (10 nM to 10 μM), and RCC-36 (10 nM to 1 μM) cause a parallel shift to the right of the concentration-response curves to acetylcholine stimulation[1].
[1]. Kikukawa H, et al. Pharmacologic actions of temiverine (p-INN) and its active metabolite, RCC-36, on isolated human urinary bladder muscle. Int J Urol. 1998 May;5(3):268-75.