医薬品リファレンス
Propylthiouracil
Propylthiouracil is a medicine in the class endocrine. It is used for graves disease.
- 薬効分類: Endocrine
- 効能・効果: graves disease
最終更新日
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要点
- 薬効分類
- Endocrine
- 一般的な剤形
- 錠剤
- 一般的な規格
- 50 mg
- 既知の相互作用
- 16 (重大: 7 · 中等度: 8 · 軽度: 1)
- 商品名
- 3
- 国・市場
- 2
何に使われるか
作用のしくみ
Inhibits synthesis of thyroid hormone by blocking oxidation of iodine in thyroid gland; blocks synthesis of T4 and T3
成人の通常用量（添付文書の要約）
Hyperthyroidism: 300-450 mg/day PO divided q8hr initially (may require up to 600-900 mg/day), Maintenance: 100-150 mg/day divided q8hr
妊娠と授乳
- 妊娠
- Safe Crosses the placenta; excess dose can cause fetal goitre and hypothyroidism. US label: may be preferred in the 1st trimester (methimazole is linked to rare birth defects), then switch to methimazole because of maternal liver toxicity. Use the lowest effective dose; monitor mother and fetus.
- 授乳
- Safe Small amounts pass into milk (about 0.025% of a 400 mg dose in 4 hours); clinically insignificant (US label). LactMed: methimazole is now preferred because of PTU liver injury, but no infant liver damage has been reported; limit to 450 mg daily if possible.
報告されている副作用
- Drowsiness
- Fever
- Agranulocytosis
- Dermatologic reactions
- Hepatitis
- Aplastic anemia
注意が必要な方
- Agranulocytosis within first 3 months of therapy reported; instruct patients to immediately report any symptoms suggestive of agranulocytoses, as fever or sore throat
- Risk of severe rare immunoallergenic hepatitis, High relapse rate (more likely in smokers)
- Discontinue in presence of unexplained fever, Interstitial pneumonitis may occur
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 (16)
- Carbamazepine + Propylthiouracil Major
- Clozapine + Propylthiouracil Major
- Methimazole + Propylthiouracil Major
- Pexidartinib + Propylthiouracil Major
- Pretomanid + Propylthiouracil Major
- Propylthiouracil + Sodium iodide i-131 Major
- Propylthiouracil + Valoctocogene roxaparvovec Major
- Iodinated glycerol + Propylthiouracil Moderate
- Iodine + Propylthiouracil Moderate
- Lycopus + Propylthiouracil Moderate
Pro+会員向け
ページ全体を見る
アカウントを作成してPro+トライアルを始めると、Propylthiouracil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
- Paediatric dosing
- Patient counselling points
- Food interactions
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同じ分類のほかの薬剤
よくある質問
What is Propylthiouracil used for?
Propylthiouracil is a medicine in the class endocrine. It is used for Graves disease, Hyperthyroidism.
What side effects have been reported with Propylthiouracil?
Drowsiness, Fever, Agranulocytosis, Dermatologic reactions, Hepatitis, Aplastic anemia.
Can Propylthiouracil be taken in pregnancy or while breastfeeding?
Pregnancy: Safe. Crosses the placenta; excess dose can cause fetal goitre and hypothyroidism. US label: may be preferred in the 1st trimester (methimazole is linked to rare birth defects), then switch to methimazole because of maternal liver toxicity. Use the lowest effective dose; monitor mother and fetus. Breastfeeding: Safe. Small amounts pass into milk (about 0.025% of a 400 mg dose in 4 hours); clinically insignificant (US label). LactMed: methimazole is now preferred because of PTU liver injury, but no infant liver damage has been reported; limit to 450 mg daily if possible.
What does Propylthiouracil interact with?
MediHelp lists 16 known interactions for Propylthiouracil. Major: 7 · Moderate: 8 · Minor: 1. The most serious include Carbamazepine, Clozapine, Methimazole.
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。
