Liothyronine (Oral Route)

Mayo Clinic Health Manager

Get free personalized health guidance for you and your family.

Get Started

Free

E-Newsletter

Subscribe to receive the latest updates on health topics. About our newsletters

  • Housecall
  • Alzheimer's caregiving
  • Living with cancer

Side Effects

Along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.

Get emergency help immediately if any of the following symptoms of overdose occur:

  • Arm, back or jaw pain
  • Changes in appetite
  • Changes in menstrual periods
  • Chest pain or discomfort
  • Chest tightness or heaviness
  • Cold clammy skin
  • Confusion
  • Decreased urine output
  • Diarrhea
  • Dilated neck veins
  • Dizziness
  • Extreme fatigue
  • Fainting
  • Fast, slow, pounding, or irregular heartbeat or pulse
  • Fever
  • Hand tremors
  • Headache
  • Increased bowel movements
  • Irregular breathing
  • Irritability
  • Leg cramps
  • Lightheadedness
  • Menstrual changes
  • Nausea
  • Nervousness
  • Sensitivity to heat
  • Shortness of breath
  • Sweating
  • Swelling of face, fingers, feet, or lower legs
  • Troubled breathing
  • Trouble sleeping
  • Vomiting
  • Weak pulse
  • Weight gain
  • Weight loss
  • Wheezing

Other side effects not listed may also occur in some patients. If you notice any other effects, check with your healthcare professional.

Call your doctor for medical advice about side effects. You may report side effects to the FDA at 1-800-FDA-1088.

Precautions

DR602013

Portions of this document last updated:

Nov. 1, 2009

Source: Drug Information provided by: Micromedex

Copyright © 2009 Thomson Healthcare Inc. All rights reserved. Information is for End User's use only and may not be sold, redistributed or otherwise used for commercial purposes.


Text Size: smaller largerlarger