Tizanidine

Tizanidine 속성

Tizanidine MSDS

Tizanidine

Tizanidine C화학적 특성, 용도, 생산

개요

Tizanidine is a centrally-acting muscle relaxant useful in the treatment of muscle spasms and a variety of spastic conditions.

용도

Labeled Tizanidine, intended for use as an internal standard for the quantification of Tizanidine by GC- or LC-mass spectrometry.

정의

ChEBI: 2,1,3-Benzothiadiazole substituted at C-4 by a Delta1-imidazolin-2-ylamino group and at C-4 by a chloro group. It is an agonist at alpha2-adrenergic receptor sites.

Mechanism of action

Tizanidine is a centrally active muscle relaxant analogue of clonidine that is approved for use in reducing spasticity associated with cerebral or spinal cord injury. Its mechanism of action for reducing spasticity suggests presynaptic inhibition of motor neurons at the α2-adrenergic receptor sites, reducing the release of excitatory amino acids and inhibiting facilitatory ceruleospinal pathways, thus resulting in a reduction in spasticity. Tizanidine only has a small fraction of the antihypertensive action of clonidine, presumably because of action at a selective subgroup of α2C-adrenoceptors, which appear to be responsible for the analgesic and antispasmodic activity of imidazoline α2-agonists(20).

Clinical Use

Tizanidine is a centrally acting adrenergic α2 receptor agonist used to treat chronic muscle spasticity conditions, such as multiple sclerosis.

부작용

Postulated mechanisms include α2 receptor-mediated decreased release of norepinephrine and serotonin from spinal interneurons. Tizanidine is structurally related to the α2 agonist clonidine that is used to treat hypertension; however, the blood pressure–lowering potency of tizanidine is approximately 10 to 20% that of clonidine. Nevertheless, patients may experience hypotension with tizanidine, together with muscle weakness, that may result in dizziness and falls in mobile patients. Tizanidine is rapidly and almost completely absorbed from the gastrointestinal tract; however, the estimated bioavailability is only 10 to 15% because of extensive first-pass metabolism, mainly by CYP1A2, which results in oxidative degradation of the imidazoline ring and hydroxylation of the aromatic system. Elevated liver enzyme values are not frequent with tizanidine use. Hepatic injury and death because of liver failure have been reported, however, and this complication should be considered in view of its marginal antispasmodic efficacy. Other frequently reported side effects of tizanidine are drowsiness and dry mouth. Clonidine also has been used to treat spasticity; however, even less high-quality clinical study data are available for this agent.

Tizanidine 준비 용품 및 원자재

원자재

준비 용품

Tizanidine 공급 업체

공급자	전화	이메일	국가	제품 수	이점
Nanjing ChemLin Chemical Industry Co., Ltd.	025-83697070	product@chemlin.com.cn	CHINA	3012	60
CONIER CHEM AND PHARMA LIMITED	+8618523575427	sales@conier.com	China	49390	58
career henan chemical co	+86-0371-86658258 15093356674;	factory@coreychem.com	China	29826	58
Shaanxi Dideu Medichem Co. Ltd	+86-29-87569265 +86-18612256290	1056@dideu.com	China	3581	58
Shaanxi Dideu Medichem Co. Ltd	+86-029-89586680 +86-18192503167	1026@dideu.com	China	9271	58
Dideu Industries Group Limited	+86-29-89586680 +86-15129568250	1026@dideu.com	China	29067	58
AFINE CHEMICALS LIMITED	0571-85134551	info@afinechem.com	CHINA	15377	58
XINGTAI XINGJIU NEW MATERIAL TECHNOLOGY CO., LTD	+8617731987558	xingjiu@xingjiubiotech.com	China	990	58
sgtlifesciences pvt ltd	+8617013299288	dj@sgtlifesciences.com	China	12382	58
Coresyn Pharmatech Co., Ltd.	+86-571-86626709 +86-18157142896	cbc@coresyn.com	China	9991	58

Tizanidine 관련 검색: