Article: Tizanidine

Tizanidine
Systematic (IUPAC) name
4-chloro-N-(4,5-dihydro-1H-imidazol-2-yl)- 8-thia-7,9-diazabicyclo[4.3.0] nona-2,4,6, 9-tetraen-5-amine
Identifiers
CAS number	51322-75-9
ATC code	M03BX02
PubChem	5487
DrugBank	APRD00128
Chemical data
Formula	C9H8ClN5S
Mol. weight	253.712 g/mol
Pharmacokinetic data
Bioavailability	?
Protein binding	30%
Metabolism	?
Half life	2.5 hours
Excretion	?
Therapeutic considerations
Pregnancy cat.	?
Legal status
Routes	?

Tizanidine (Zanaflex) is a centrally acting a2-adrenergic agonist. It is used to treat the spasms, cramping, and tightness of muscles caused by medical problems such as multiple sclerosis, back pain, or certain injuries to the spine. It can come in a white pill with the markings cor 138 and 2 scores on the back that create an X.

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it has also shown hypnotic/sedative/anxiolytic properties as a result of sedation(drowsiness).