tizanidine
Sign in to saveTizanidine, sold under the brand name Zanaflex among others, is an alpha-2 (α2) adrenergic receptor agonist, similar to clonidine, that is used to treat muscle spasticity due to spinal cord injury, multiple sclerosis, and spastic cerebral palsy. Effectiveness appears similar to baclofen or diazepam. It is taken by mouth.
Key facts
- Drug.bioavailability
- ~40%
- Drug.Watchedfields
- changed
- Drug.verifiedrevid
- 470611127
- Drug.image
- Tizanidine.svg
- Drug.image_class
- skin-invert-image
- Drug.width
- 190
- Drug.image2
- Tizanidine-from-xtal-3D-bs-17.png
- Drug.image_class2
- bg-transparent
- Drug.tradename
- Zanaflex, Sirdalud, and others
- Drug.MedlinePlus
- a601121
- Drug.DailyMedID
- Tizanidine
- Drug.routes_of_administration
- By mouth
- Drug.ATC_prefix
- M03
- Drug.ATC_suffix
- BX02
- Drug.class
- α2-adrenergic receptor agonist
- Drug.legal_US
- Rx-only
- Drug.protein_bound
- ~30%
- Drug.metabolism
- Liver (CYP1A2, 95%)
via Wikipedia infobox
Research
713 papers- Tizanidine.2006
- Tizanidine.2012
- Tizanidine: Advances in Pharmacology & Therapeutics and Drug Formulations.Journal of pain research · 2024
- Tizanidine.2026
- Tizanidine Induced Hypotension: Report of a Case and Review of the Literature.Current drug safety · 2024
via PubMed
Article
7 sectionsContents
- Medical uses
- Side effects
- Interactions
- Pharmacology
- Route of administration
- Chemistry
- References
Tizanidine, sold under the brand name Zanaflex among others, is an alpha-2 (α2) adrenergic receptor agonist, similar to clonidine, that is used to treat muscle spasticity due to spinal cord injury, multiple sclerosis, and spastic cerebral palsy. Effectiveness appears similar to baclofen or diazepam. It is taken by mouth.
Common side effects of tizanidine include dry mouth, sleepiness, weakness, and dizziness. Serious side effects may include low blood pressure, liver problems, psychosis, and QT prolongation. It is unclear if use in pregnancy and breastfeeding is safe. It is an α2-adrenergic agonist, but how it works is not entirely clear.