医薬品リファレンス
Liothyronine
Liothyronine is a medicine in the class endocrine. It is used for hypothyroidism.
- 薬効分類: Endocrine
- 効能・効果: hypothyroidism
最終更新日 出典: US FDA label
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要点
- 薬効分類
- Endocrine
- 一般的な剤形
- 錠剤
- 既知の相互作用
- 53 (中等度: 41 · 軽度: 12)
- 商品名
- 2
- 国・市場
- 1
何に使われるか
作用のしくみ
Thyroid hormones act by controlling DNA transcription and protein synthesis. T3 and T4 diffuse into the cell nucleus and bind to thyroid receptor proteins attached to DNA, activating gene transcription and messenger RNA synthesis.
成人の通常用量（添付文書の要約）
Hypothyroidism: start 25 mcg orally once daily; increase by 25 mcg daily every 1 or 2 weeks if needed; usual maintenance 25 mcg to 75 mcg once daily
妊娠と授乳
- 妊娠
- Safe Post-marketing data have not shown more birth defects or miscarriage. Untreated hypothyroidism harms mother and fetus, so do not stop treatment: check TSH and adjust the dose during pregnancy. Levothyroxine is the usual first choice in pregnancy.
- 授乳
- Safe Liothyronine (T3) is a normal component of milk; replacement doses are not a reason to stop breastfeeding (LactMed). US label: weigh benefits (insufficient data on infant effects). Levothyroxine is recommended for hypothyroidism while breastfeeding.
報告されている副作用
- Arrhythmias
- Headache
- Nervousness
- Insomnia
- Tremors
- Weight loss
警告（枠囲み警告）
- Not for treatment of obesity or for weight loss. In euthyroid patients, doses within the range of daily hormonal requirements are ineffective for weight reduction. Larger doses may produce serious or even life-threatening toxicity, particularly with sympathomimetic amines.
禁忌
- Uncorrected adrenal insufficiency
注意が必要な方
- Cardiac adverse reactions in the elderly and patients with cardiovascular disease; start at lower doses
- Not for myxedema coma; use intravenous thyroid hormone products
- Acute adrenal crisis in adrenal insufficiency; give glucocorticoids first
妊娠中または授乳中であること、腎臓や肝臓の病気、アレルギー、ほかに使用しているすべての薬やサプリメントについて、薬剤師または医師にお伝えください。
主な相互作用 (53)
- Alogliptin-metformin + Liothyronine Moderate
- Amitriptyline + Liothyronine Moderate
- Amobarbital + Liothyronine Moderate
- Canagliflozin-metformin + Liothyronine Moderate
- Carbamazepine + Liothyronine Moderate
- Carbonyl iron + Liothyronine Moderate
- Cholestyramine + Liothyronine Moderate
- Clomipramine + Liothyronine Moderate
- Colesevelam + Liothyronine Moderate
- Dapagliflozin-metformin + Liothyronine Moderate
Pro+会員向け
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アカウントを作成してPro+トライアルを始めると、Liothyronineの完全なモノグラフ（用量、妊娠・授乳、副作用、警告、すべての相互作用）を表示できます。
- Dosing by age, kidney and liver function, and further dose lines
- Renal and hepatic dose adjustments
- Paediatric dosing
- Dosing in older adults
- How to give it
- Pharmacokinetics
- Patient counselling points
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同じ分類のほかの薬剤
よくある質問
What is Liothyronine used for?
Liothyronine is a medicine in the class endocrine. It is used for Hypothyroidism, Thyroid cancer.
What side effects have been reported with Liothyronine?
Arrhythmias, Headache, Nervousness, Insomnia, Tremors, Weight loss. Serious warning: Not for treatment of obesity or for weight loss.
Can Liothyronine be taken in pregnancy or while breastfeeding?
Pregnancy: Safe. Post-marketing data have not shown more birth defects or miscarriage. Untreated hypothyroidism harms mother and fetus, so do not stop treatment: check TSH and adjust the dose during pregnancy. Levothyroxine is the usual first choice in pregnancy. Breastfeeding: Safe. Liothyronine (T3) is a normal component of milk; replacement doses are not a reason to stop breastfeeding (LactMed). US label: weigh benefits (insufficient data on infant effects). Levothyroxine is recommended for hypothyroidism while breastfeeding.
What does Liothyronine interact with?
MediHelp lists 53 known interactions for Liothyronine. Moderate: 41 · Minor: 12. The most serious include Alogliptin-metformin, Amitriptyline, Amobarbital.
完全なモノグラフ、用量、相互作用チェッカーはMediHelpアプリで
MediHelpアプリで、完全なリファレンスを開き、複数薬剤の相互作用をチェックし、用量ツールを利用できます。
