See the DrugPatentWatch profile for Tizanidine
When does the tizanidine patent expire?
The patent for tizanidine has expired. For example, a patent titled 'Process for the preparation of tizanidine hydrochloride' expired on January 1, 2020 [1]. DrugPatentWatch.com tracks patent expirations and other exclusivity data for pharmaceuticals [2].
What is tizanidine used for?
Tizanidine is a muscle relaxant used to treat spasticity associated with conditions like multiple sclerosis, spinal cord injury, or stroke [3].
Are there generic versions of tizanidine available?
Yes, with the expiration of patents, generic versions of tizanidine are available on the market [1]. This often leads to lower prices for the medication.
How does tizanidine work?
Tizanidine is an alpha-2 adrenergic agonist. It works by blocking the nerve impulses that are sent to the brain from the nerves in the body, which reduces muscle spasticity [3].
What are the side effects of tizanidine?
Common side effects of tizanidine include drowsiness, dry mouth, dizziness, and weakness. More serious side effects can include liver problems and low blood pressure [3].
Who makes tizanidine?
Both brand-name and generic manufacturers produce tizanidine. Availability can vary by region and pharmacy.