Tizanidine: What Are The Possible Side Effects Of Tizanidine

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What are the possible side effects of tizanidine?

Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.

Call your doctor at once if you have any of these serious side effects:

• feeling light-headed, fainting, slow heart rate;
• hallucinations, confusion, unusual thoughts or behavior;
• nausea, stomach pain, low fever, loss of appetite, dark urine, clay-colored stools, jaundice (yellowing of the skin or eyes); or
• burning or pain when you urinate.

Less serious side effects may be more likely to occur, such as:

• drowsiness or dizziness;
• feeling anxious or nervous;
• numbness or tingling;
• stomach pain, diarrhea, constipation, vomiting;
• fever;
• dry mouth;
• muscle weakness, back pain;
• increased muscle tone or spasms; or
• sweating or skin rash.

Side effects other than those listed here may also occur. Talk to your doctor about any side effect that seems unusual or that is especially bothersome.

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Last updated:	May 11, 2007