Liothyronine Side Effects
What should I watch for?
You will need regular exams and occasional blood tests to check the response to treatment. If you receive this medicine for an underactive thyroid, it may be several weeks before you notice an improvement. Check with your doctor or health care professional if your symptoms do not improve.
It may be necessary for you to take this medicine for the rest of your life. Do not stop using this medicine unless your doctor or health care professional advises you to.
This medicine can affect blood sugar levels. If you have diabetes, check your blood sugar as directed.
If you are going to have surgery, tell your doctor or health care professional that you are taking this medicine.
Common and Rare 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
decreased urine output
dilated neck veins
fast, slow, pounding, or irregular heartbeat or pulse
increased bowel movements
sensitivity to heat
shortness of breath
swelling of face, fingers, feet, or lower legs
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.