MEFLOQUINE HCL Side Effects by Likelihood and Severity

COMMON side effects

If experienced, these tend to have a Severe expression i

  • difficulty concentrating

If experienced, these tend to have a Less Severe expression i

  • a change in vision
  • dizziness
  • difficulty sleeping
  • decreased appetite
  • headache
  • nausea
  • vomiting
  • diarrhea
  • stomach cramps

INFREQUENT side effects

If experienced, these tend to have a Severe expression i

  • trouble breathing

If experienced, these tend to have a Less Severe expression i

  • muscle pain
  • low energy
  • a skin rash

RARE side effects

If experienced, these tend to have a Severe expression i

  • low blood counts due to bone marrow failure
  • decreased blood platelets
  • very low levels of granulocytes, a type of white blood cell
  • high levels of white blood cells
  • mental problems from taking the drug
  • confusion
  • mood changes
  • paranoia
  • panic disorder
  • suicidal thoughts
  • depression
  • a type of brain function problem called encephalopathy
  • high blood pressure
  • complete stoppage of the heart
  • slow heartbeat
  • prolonged QT interval on EKG
  • abnormal heart rhythm
  • low blood pressure
  • inflammation in the lungs due to an allergic reaction
  • liver failure
  • erythema multiforme, a type of allergic skin reaction
  • a skin disorder with blistering and peeling skin called Stevens-Johnson syndrome
  • hives
  • muscle weakness
  • hallucinations
  • fainting
  • seizures
  • sensation of spinning or whirling
  • muscle tremors
  • loss of muscle coordination
  • abnormal liver function tests
  • nervousness
  • a significant type of allergic reaction called anaphylaxis
  • a feeling of pins and needles on skin

If experienced, these tend to have a Less Severe expression i

  • ringing in the ears
  • indigestion
  • erythema or redness of skin or mucous membrane
  • itching
  • hair loss
  • joint pain
  • cramps
  • memory loss
  • fever
  • excessive sweating
  • chills
  • visible water retention
  • generalized weakness
  • a feeling of general discomfort called malaise
  • anxious feelings

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Selected from data included with permission and copyrighted by First Databank, Inc. This copyrighted material has been downloaded from a licensed data provider and is not for distribution, except as may be authorized by the applicable terms of use.

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.