相互作用
Methimazole + Sodium iodide i-131
重症度: 重大
Methimazole and Sodium iodide i-131: major interaction.
最終更新日
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概要
Antithyroid drugs reduce thyroid uptake of radioiodine, so the therapeutic radiation dose delivered to the gland may be inadequate. Treatment failure or the need for repeat dosing may result.
この相互作用をわかりやすく説明すると
Methimazole and Sodium iodide i-131 can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for.
なぜ起こるのか
Methimazole inhibits thyroid peroxidase and hormone synthesis, which lowers thyroidal radioiodine uptake and retention.
対処法
Stop methimazole several days before I-131 administration, typically 3 to 4 days per labeling, and do not give them together. Restart afterward according to the treating specialist's plan and monitor thyroid function.
薬剤師に尋ねること
- Does the benefit of taking both outweigh the risk in my case?
- Do I need any blood test, ECG or other check while on both?
- What early warning signs should I watch for, and what should I do if they appear?
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、MethimazoleとSodium iodide i-131の臨床対応の詳細なアドバイス、追加の注記、エビデンスの詳細、処方全体を対象とした相互作用チェッカーを利用できます。
- Full clinical management advice
- Additional notes
- Evidence detail
- Interaction checker for a whole prescription
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Methimazoleのその他の相互作用
よくある質問
Can I take Methimazole with Sodium iodide i-131?
MediHelp rates the interaction as major. Methimazole and Sodium iodide i-131 can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for. Antithyroid drugs reduce thyroid uptake of radioiodine, so the therapeutic radiation dose delivered to the gland may be inadequate. Treatment failure or the need for repeat dosing may result.
How serious is the interaction between Methimazole and Sodium iodide i-131?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Stop methimazole several days before I-131 administration, typically 3 to 4 days per labeling, and do not give them together. Restart afterward according to the treating specialist's plan and monitor thyroid function.
What other medicines interact with Methimazole?
MediHelp also lists interactions of Methimazole with, for example, Carbamazepine, Clozapine, Propylthiouracil. The full list is on the Methimazole page.
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。
