Mexiletine HCL Side Effects by Likelihood and Severity

COMMON side effects


If experienced, these tend to have a Less Severe expression

  • A Type Of Abnormal Movement Disorder Called Dyskinesia
  • Dizziness
  • Heartburn
  • Muscle Tremors
  • Nausea
  • Nervousness
  • Vomiting

INFREQUENT side effects


If experienced, these tend to have a Severe expression

  • A High Aspartate Transaminase Level
  • Abnormal Liver Function Tests
  • Chest Pain
  • Trouble Breathing
  • Ventricular Premature Beats

If experienced, these tend to have a Less Severe expression

  • A Feeling Of Pins And Needles On Skin
  • A Skin Rash
  • Blurred Vision
  • Confusion
  • Constipation
  • Diarrhea
  • Difficulty Sleeping
  • Generalized Weakness
  • Headache
  • Low Energy
  • Ringing In The Ears
  • Slurred Speech

RARE side effects


If experienced, these tend to have a Severe expression

  • A Condition Where There Is Formation Of Fibrous Tissue In The Lung Called Pulmonary Fibrosis
  • A Type Of Significant Allergic Skin Reaction Called DRESS Syndrome
  • Acute Inflammation Of The Pancreas
  • Decreased Blood Platelets
  • Liver Problems
  • Liver Tissue Death
  • Low Levels Of A Type Of White Blood Cell Called Neutrophils
  • Low Levels Of White Blood Cells
  • Seizures
  • Ventricular Arrhythmias, A Type Of Abnormal Heart Rhythm
  • Very Low Levels Of Granulocytes, A Type Of White Blood Cell
  • X-Ray Results Showing Lung Tissue Changes

If experienced, these tend to have a Less Severe expression

  • Dry Mouth
  • Fever
  • Joint Pain
  • Stomach Cramps

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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.