Tizanidine Overview, Dosage, How to Take, Side Effects and Overdose

Serious side effects Tizanidine. 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)
  • burning or pain when you urinate