Tizanidine: What Are The Possible Side Effects Of Tizanidine


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What are the possible side effects of tizanidine?


emt 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.
emt 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.

This list is not complete and other side effects may occur. Tell your doctor about any unusual or bothersome side effects.



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Last updated: August 10, 2007

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