Pharmacology Of Procyclidine

Indication For the treatment of all forms of Parkinson's Disease, as well as control of extrapyramidal reactions induced by antipsychotic agents.
Pharmacodynamics Procyclidine has an atropine-like action on parasympathetic-innervated peripheral structures including smooth muscle. It's antispasmodic effects are thought to be related to the blockage of central cholinergic receptors M1, M2 and M4. It is used to treat symptomatic Parkinsonism and extrapyramidal dysfunction caused by antipsychotic agents.
Mechanism of action The mechanism of action is unknown. It is thought that Procyclidine acts by blocking central cholinergic receptors, and thus balancing cholinergic and dopaminergic activity in the basal ganglia. Many of its effects are due to its pharmacologic similarities with atropine. Procyclidine exerts an antispasmodic effect on smooth muscle, and may produce mydriasis and reduction in salivation.
Absorption Not Available
Volume of distribution Not Available
Protein binding Approximately 100% bound to albumin.
Metabolism Not Available
Route of elimination Not Available
Half life Not Available
Clearance Not Available
Toxicity LD50=60 mg/kg (IV in mice)