flexeril (cyclobenzaprine)

$4.00

Side effects requiring immediate medical attention

Along with its needed effects, cyclobenzaprine (the active ingredient contained in Flexeril) may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.

Check with your doctor immediately if any of the following side effects occur while taking cyclobenzaprine:

Rare

  • Clumsiness or unsteadiness
  • confusion
  • fainting
  • mental depression
  • problems in urinating
  • ringing or buzzing in the ears
  • skin rashhives, or itching occurring without other symptoms of an allergic reaction listed above
  • unusual thoughts or dreams
  • yellow eyes or skin

Get emergency help immediately if any of the following symptoms of overdose occur while taking cyclobenzaprine:

Symptoms of overdose

  • Convulsions (seizures)
  • drowsiness (severe)
  • dry, hot, flushed skin
  • fast or irregular heartbeat
  • hallucinations (seeing, hearing, or feeling things that are not there)
  • increase or decrease in body temperature
  • troubled breathing
  • unexplained muscle stiffness
  • unusual nervousness or restlessness (severe)
  • vomiting (occurring together with other symptoms of overdose)