Levothyroxine SODIUM Side Effects by Likelihood and Severity

COMMON side effects


If experienced, these tend to have a Less Severe expression

  • Female Problems Causing Trouble In Getting Pregnant

INFREQUENT side effects


If experienced, these tend to have a Severe expression

  • Decreased Calcification Or Density Of Bone

If experienced, these tend to have a Less Severe expression

  • High Blood Pressure
  • Weight Loss

RARE side effects


If experienced, these tend to have a Severe expression

  • Abnormal Heart Rhythm
  • Abnormal Liver Function Tests
  • Angina
  • Complete Stoppage Of The Heart
  • Fast Heartbeat
  • Giant Hives
  • Heart Attack
  • Heart Failure
  • Hives
  • Inflammation Of Skin Caused By An Allergy
  • Mood Changes
  • Pseudotumor Cerebri
  • Rash
  • Seizures
  • Trouble Breathing

If experienced, these tend to have a Less Severe expression

  • Change In Pulse
  • Chronic Trouble Sleeping
  • Diarrhea
  • Easily Angered Or Annoyed
  • Excessive Sweating
  • Feeling Anxious
  • Fever
  • Hair Loss
  • Head Pain
  • Heart Throbbing Or Pounding
  • Heat Intolerance
  • Increased Hunger
  • Involuntary Quivering
  • Irregular Periods
  • Low Energy
  • Muscle Spasm
  • Muscle Weakness
  • Nervous
  • Problem With Periods
  • Stomach Cramps
  • Temporary Redness Of Face And Neck
  • Throwing Up

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, expect 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.