What Is Tizanidine?

Tizanidine hydrochloride (
 Zanaflex®) is a medication licensed for the treatment of muscle spasms, muscle tightness, and other symptoms of spasticity. It is a short-acting medication (each dose typically lasts between three and six hours) that comes in both tablet and capsule forms. A generic version is also available.
 
As with any medication, side effects are possible with tizanidine. In clinical studies, dry mouth, drowsiness, and weakness were some of the most common problems reported with this drug. Be sure to talk to your healthcare provider about the medication's warnings and precautions before starting treatment. Tizanidine may not be suitable for everyone, so your healthcare provider needs to know if you are taking any other medications, have any other medical conditions, or have any allergies.
 
(For more information, click Tizanidine. This article explains what tizanidine is used for in more detail and tells you what you need to know about how the medication works, who makes it, and how to take your dosage.)
 
Written by/reviewed by: Kristi Monson, PharmD; Arthur Schoenstadt, MD
Last reviewed by: Kristi Monson, PharmD;