All are Atropine substitutes except
Procyclidine
Propantheline
Tiotropium
Drotaverin
Drotaverine (INN, also known as drotaverin) is an antispasmodic drug, used to enhance cervical dilation during childbih. It is structurally related to papaverine, is a selective inhibitor of phosphodiesterase 4, and has no anticholinergic effects. Ref - medscape.com
All India exam