Benzhexol hydrochloride

Описание

Trihexyphenidyl is an antagonist of M₁ muscarinic acetylcholine receptors. It binds to rat M₁ receptors in cerebral cortex selectively over rat M₂ receptors in heart tissue (IC₅₀s = 3.7 and 31 nM, respectively). Trihexyphenidyl inhibits contractions induced by acetylcholine in guinea pig ileum (IC₅₀ = 22 nM). It also inhibits oxotremorine-induced tremors and physostigmine-induced mortality in mice (ED₅₀s = 2 and 3.6 mg/kg, respectively). Trihexyphenidyl (20 mg/kg) improves abnormal movement in a mouse model of L-3,4-dihydroxyphenylalanine (L-DOPA) responsive dystonia (DRD) that expresses mutant tyrosine hydroxylase (TH). Formulations containing trihexyphenidyl have been used in the symptomatic treatment of Parkinson''s disease.

Химические свойства

Benzhexol hydrochloride is White Solid

Использование

Benzhexol hydrochloride is an anticholinergic tertiary amine that can gain access to the CNS. It is used to treat parkinsonism and the extrapyramidal side effects of anti-psychotic drugs. The drug is a muscarinic anta gonist that qualitatively resembles the belladonna alkaloids in its pharmacological actions and side effects.

Общее описание

Trihexyphenidylhydrochloride, α-cyclohexyl-α-phenyl-1-piperidinepropanolhydrochloride (Artane, Tremin, Pipanol), introduced in1949, is approximately half as active as atropine as an antispasmodicbut is claimed to have milder side effects, such asmydriasis, drying of secretions, and cardioacceleration. It hasa good margin of safety, although it is about as toxic as atropine.It has found a place in the treatment of parkinsonismand is claimed to provide some measure of relief from themental depression often associated with this condition. It does, however, exhibit some of the side effects typical of theparasympatholytic-type preparation, although adjusting thedose carefully may often eliminate these.

Побочные эффекты

Common side effects of Benzhexol hydrochloride include drowsiness, dizziness, constipation, flushing, nausea, nervousness, blurred vision or dry mouth. Severe may include: decreased sexual performance, severe stomach/abdominal pain, difficulty/pain in swallowing, difficulty in urinating, chest pain, severe dizziness/fainting, high fever, fast/irregular/slow heartbeat, mental/mood changes (e.g., blurred consciousness, hallucinations, memory problems), pain/swelling/reddening of the eyes, changes in vision (e.g., seeing rainbows around lights at night). Symptoms of very severe allergic reactions in some patients include: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, and difficulty breathing. In addition, studies have shown that Benzhexol hydrochloride has minimal side effects in the treatment of salivation in children with cerebral palsy.

Профиль безопасности

Poison by ingestion,intraperitoneal, intravenous, and subcutaneous routes. Ananticholinergic agent which causes human psychotropiceffects. Human systemic effects by ingestion: distortedperceptions, eye effects, hallucinations, toxic psychosis.When he