Thyrolar-1/4 Side Effects
Generic name: liotrix
Medically reviewed by Drugs.com. Last updated on Apr 7, 2025.
Note: This document provides detailed information about Thyrolar-1/4 Side Effects associated with liotrix. Some dosage forms listed on this page may not apply specifically to the brand name Thyrolar-1/4.
Applies to liotrix: oral tablet.
Serious side effects of Thyrolar-1/4
Along with its needed effects, liotrix (the active ingredient contained in Thyrolar-1/4) may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.
Check with your doctor immediately if any of the following side effects occur while taking liotrix:
Incidence not determined
- chest pain
- constipation
- depressed mood
- difficulty in moving
- discouragement
- dryness of the eye
- dry skin and hair
- fast, irregular, pounding, or racing heartbeat or pulse
- fear, nervousness
- feeling cold
- feeling sad or empty
- fever
- headache
- hives or welts
- hoarseness or husky voice
- increased sweating
- increased weight
- increase in blood pressure
- irritability
- irritation
- itching skin
- joint pain, stiffness or swelling
- lack of appetite
- lack or loss of strength
- loss of interest or pleasure
- muscle aching or cramping
- muscle pain or stiffness
- nausea
- redness of skin
- shakiness in legs, arms, hands, feet
- shortness of breath
- skin rash
- sleeplessness
- slowed heartbeat
- sluggishness
- swelling of eyelids, face, lips, hands, or feet
- swollen joints
- tightness in chest
- tiredness
- trembling or shaking of hands or feet
- trouble concentrating
- troubled breathing or swallowing
- trouble sleeping
- unable to sleep
- unusual tiredness or weakness
- weight gain
- wheezing
Other side effects of Thyrolar-1/4
Some side effects of liotrix may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects.
Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:
Incidence not determined
- hair loss, thinning of hair
For healthcare professionals
Applies to liotrix: oral tablet.
General adverse events
Adverse reactions other than those attributable to hyperthyroidism due to therapeutic overdose are rare. Excessive doses may result in a hypermetabolic state resembling in every respect the condition of endogenous origin.[Ref]
Endocrine
- Postmarketing reports: Hypothyroidism, thyroid stimulating hormone (TSH) increased, TSH decreased[Ref]
Cardiovascular
- Postmarketing reports: Palpitation, blood pressure increased, heart rate increased[Ref]
Dermatologic
Immunologic
- Postmarketing reports: Hypersensitivity[Ref]
Musculoskeletal
Ocular
- Postmarketing reports: Keratoconjunctivitis sicca[Ref]
Other
Nervous system
- Postmarketing reports: Headache, tremor[Ref]
Gastrointestinal
- Postmarketing reports: Nausea[Ref]
Psychiatric
- Postmarketing reports: Anxiety, depression, insomnia[Ref]
References
1. (2001) "Product Information. Thyrolar (liotrix)." Forest Pharmaceuticals
More about Thyrolar-1/4 (liotrix)
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Further information
Thyrolar-1/4 side effects can vary depending on the individual. Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.
Note: Medication side effects may be underreported. If you are experiencing side effects that are not listed, submit a report to the FDA by following this guide.
