When should I call my doctor if I am taking tizanidine?

Stacy Wiegman, PharmD

Pharmacy

If you are taking tizanidine (Zanaflex) to treat multiple sclerosis (MS), call your doctor right away if you have any serious side effects, such as yellowing skin, pain in the upper right part of your stomach or hallucinations (seeing or hearing things that aren't really there). Tizanidine also can cause mild side effects such as back pain, vomiting, constipation and heartburn. If these side effects bother you or don't go away, call your doctor.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.