MedDataToolLiothyronine is a medication used to treat hypothyroidism, which is a condition where the thyroid gland doesn’t produce enough hormones, and it can also help manage certain types of thyroid cancer. It works by providing the body with the thyroid hormone it needs to regulate metabolism and energy levels. You take it as a tablet once a day, starting with a low dose of 25 micrograms, which can be increased gradually based on how you respond, but the maximum usual dose is 75 micrograms daily. It's important to know that this medication should not be taken if you have untreated adrenal insufficiency, as it can cause serious health issues. Additionally, if you are switching from levothyroxine, you should stop that medication before starting liothyronine to ensure proper dosing and effectiveness.
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Uses
- Hypothyroidism.
- Thyroid cancer management.
- Thyroid suppression test.
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Dosage
Adults: Start with 25 mcg daily, increase as needed.
Elderly: Start with 5 mcg daily, increase slowly.
Pediatrics: Start with 5 mcg daily, increase as needed.
Administer orally once daily.
Always follow your doctor's specific instructions for your dose.
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Side effects
Common
headachenervousnessinsomniaweight lossincreased appetite
Serious
heart failurearrhythmiasmuscle weaknessmenstrual irregularities
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Warnings
⚠ Important warnings
- Not for weight loss or obesity treatment.
- Not for benign thyroid nodules or nontoxic goiter.
- Monitor closely if switching from levothyroxine.
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Drug interactions
- Bile Acid Sequestrantsmay reduce absorptionCaution
- Estrogensmay alter T3 serum transportCaution
- Phenobarbitalmay increase metabolism of thyroid hormonesCaution
- Propranololmay decrease T3 levelsCaution
- Antidiabetic agentsmay worsen glycemic control.Caution
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Answers pulled from the FDA label only.
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Medical Disclaimer: This content is provided for informational and educational purposes only and is not intended as medical advice. Always consult a qualified healthcare provider before taking any medication.
Data Source: Publicly available drug labeling information from the U.S. Food and Drug Administration (FDA).
Data Source: Publicly available drug labeling information from the U.S. Food and Drug Administration (FDA).