Tizanidine is a short-acting muscle relaxant and is used to treat spasticity. Learn about side effects, interactions and indications. Find patient medical information for Tizanidine (Zanaflex) on WebMD including its uses, side effects and safety, interactions, pictures, warnings, and user ratings Tizanidine (Zanaflex) is a muscle relaxant that treats muscle spasms. It relaxes your muscles, which reduces muscle stiffness. Zanaflex (tizanidine) is a short-acting muscle relaxer used to treat spasticity by temporarily relaxing muscle tone. Includes Zanaflex side effects, interactions and indications. Zanaflex - ® (tizanidine hydrochloride) is a central alpha - 2-adrenergic agonist. Tizanidine HCl is a white to off-white, fine crystalline powder, which is odorless or with a faint. Learn about tizanidine (Zanaflex) usage and dosing. Read the latest news and reviews about the drug as well as potential side effects and popular alternatives. Description Tizanidine is used to help relax certain muscles in your body. It relieves spasms, cramping, and tightness of the muscles caused by medical problems, including multiple sclerosis or certain injuries to the spine. Tizanidine does not cure these problems, but it may allow other treatment, such as physical therapy, to be more helpful in improving your condition. Tizanidine acts on the. Medscape - Spasticity-specific dosing for Zanaflex (tizanidine), frequency-based adverse effects, comprehensive interactions, contraindications, pregnancy & lactation schedules, and cost information. Zanaflex (Tizanidine) may treat, side effects, dosage, drug interactions, warnings, patient labeling, reviews, and related medications including drug comparison and health resources. Tizanidine, sold under the brand name Zanaflex among others, is an alpha-2 (α 2) adrenergic receptor agonist, [2] similar to clonidine, that is used to treat muscle spasticity due to spinal cord injury, multiple sclerosis, and spastic cerebral palsy. [3] Effectiveness appears similar to baclofen or diazepam. [4] It is taken by mouth. [5] Common side effects of tizanidine include dry mouth.