Mefloquine HCL Side Effects by Likelihood and Severity

COMMON side effects


If experienced, these tend to have a Severe expression

  • Cannot Focus Thoughts

If experienced, these tend to have a Less Severe expression

  • Chronic Trouble Sleeping
  • Diarrhea
  • Dizzy
  • Feel Like Throwing Up
  • Head Pain
  • Loss Of Appetite
  • Problems With Eyesight
  • Stomach Cramps
  • Throwing Up

INFREQUENT side effects


If experienced, these tend to have a Severe expression

  • Trouble Breathing

If experienced, these tend to have a Less Severe expression

  • Low Energy
  • Muscle Pain
  • Rash

RARE side effects


If experienced, these tend to have a Severe expression

  • Abnormal Heart Rhythm
  • Abnormal Liver Function Tests
  • Abnormally Low Blood Pressure
  • Complete Stoppage Of The Heart
  • Confused
  • Decreased Blood Platelets
  • Deficiency Of Granulocytes A Type Of White Blood Cell
  • Depression
  • Disorder Of The Brain
  • Erythema Multiforme
  • Feeling Faint
  • Hallucination
  • Having Thoughts Of Suicide
  • High Blood Pressure
  • Hives
  • Increase Of White Blood Cells
  • Inflammation In Lungs Caused By Allergic Reaction
  • Life Threatening Allergic Reaction
  • Liver Failure
  • Low Blood Counts Due To Bone Marrow Failure
  • Mood Changes
  • Muscle Weakness
  • Nervous
  • Numbness And Tingling
  • Panic Disorder
  • Paranoia
  • Prolonged QT Interval On EKG
  • Psychosis Caused By A Drug
  • Seizures
  • Sensation Of Spinning Or Whirling
  • Shaking Extremities
  • Slow Heartbeat
  • Stevens-Johnson Syndrome
  • Uncoordinated

If experienced, these tend to have a Less Severe expression

  • Chills
  • Cramps
  • Excessive Sweating
  • Feeling Anxious
  • Feeling Weak
  • Fever
  • Generalized Disorder Of Peripheral Nerves
  • Hair Loss
  • Indigestion
  • Itching
  • Joint Pain
  • Loss Of Memory
  • Not Feeling Well
  • Redness Of Skin
  • Ringing In The Ears
  • Visible Water Retention

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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.