procyclidine

Procyclidine hydrochloride ((±)-Procyclidine hydrochlorid) is a potent anticholinergic agent and also have NMDA antagonist properties.

Procyclidine (Tricyclamol; (±)-Procyclidine) is an anticholinergic agent that functions as a muscarinic receptor antagonist and an N-methyl-D-aspartate (NMDA) antagonist. It is used in studies of Parkinson's disease and related psychiatric disorders, including Soman-induced epilepsy [1][2].

Biperiden Hydrochloride (KL 373 Hydrochloride) is an anticholinergic antiparkinsonian agent that selectively blocks central M1 cholinoreceptors while exerting atropine-like effects on peripheral parasympathetic structures. Biperiden Hydrochloride is approved for the adjunctive treatment of postencephalitic, idiopathic, and arteriosclerotic Parkinson’s disease, demonstrates minimal impairment of novelty preference compared with other anticholinergics in comparative cognitive studies, and is associated with known adverse effects including drowsiness, vertigo, headache, and dizziness.