Cyclobenzaprine HCL ER Side Effects by Likelihood and Severity

COMMON side effects


If experienced, these tend to have a Less Severe expression

  • Dizzy
  • Drowsiness
  • Dry Mouth

INFREQUENT side effects


If experienced, these tend to have a Less Severe expression

  • Blurred Vision

RARE side effects


If experienced, these tend to have a Severe expression

  • Abnormal Heart Rhythm
  • Abnormal Liver Function Tests
  • Blockage Of Normal Bile Flow
  • Bronchospasm
  • Cannot Empty Bladder
  • Confused
  • Depression
  • Difficult Or Painful Urination
  • DRESS Syndrome
  • Fast Heartbeat
  • Feeling Faint
  • Giant Hives
  • Hepatitis
  • Hives
  • Inflammation Of Skin Caused By An Allergy
  • Itching
  • Life Threatening Allergic Reaction
  • Psychosis Caused By A Drug
  • Rash
  • Seizures
  • Serotonin Syndrome - Adverse Drug Interaction
  • Toxic Effect On Brain Or Spinal Cord Function
  • Trouble Breathing
  • Uncoordinated
  • Yellowing Of Skin Or Eyes From Liver Problems

If experienced, these tend to have a Less Severe expression

  • Abnormally Low Blood Pressure
  • Acne
  • Agitation
  • Chronic Trouble Sleeping
  • Constipation
  • Disturbance Of Attention
  • Dysarthria
  • Excessive Sweating
  • Feel Like Throwing Up
  • Frequent Urination
  • Head Pain
  • Heart Throbbing Or Pounding
  • Indigestion
  • Irritation Of The Stomach Or Intestines
  • Loss Of Taste
  • Low Energy
  • Muscle Weakness
  • Nervous
  • Not Feeling Well
  • Numbness And Tingling
  • Ringing In The Ears
  • Shaking Extremities
  • Stomach Cramps
  • Taste Problems
  • Twitching
  • Widening Of Blood Vessels

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CONDITIONS OF USE: The information in this database is intended to supplement, not substitute for, the expertise and judgment of healthcare professionals. The information is not intended to cover all possible uses, directions, precautions, drug interactions or adverse effects, nor should it be construed to indicate that use of a particular drug is safe, appropriate or effective for you or anyone else. A healthcare professional should be consulted before taking any drug, changing any diet or commencing or discontinuing any course of treatment.