相互作用
Lycopus + Methimazole
重症度: 中等度
Lycopus and Methimazole: moderate interaction.
最終更新日
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概要
Lycopus (gypsywort) extracts have antithyrotropic activity and may reduce thyroid hormone activity, including peripheral T4 to T3 conversion. Combined with methimazole this could add to the antithyroid effect and raise the risk of over-suppression and hypothyroidism.
この相互作用をわかりやすく説明すると
Lycopus and Methimazole can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.
なぜ起こるのか
Additive antithyroid pharmacodynamic effects, with lycopus inhibiting TSH binding and peripheral T4 to T3 conversion.
対処法
Avoid starting lycopus in patients on methimazole where possible. If it is used, monitor TSH and free T4/T3 every 4-6 weeks and reduce the methimazole dose if hypothyroidism appears.
薬剤師に尋ねること
- Should I take them at different times of day?
- Does the dose of either medicine need to change?
- Is there anything I should avoid, such as alcohol or certain foods, while on both?
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、LycopusとMethimazole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 Lycopus with Methimazole?
MediHelp rates the interaction as moderate. Lycopus and Methimazole can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Lycopus (gypsywort) extracts have antithyrotropic activity and may reduce thyroid hormone activity, including peripheral T4 to T3 conversion. Combined with methimazole this could add to the antithyroid effect and raise the risk of over-suppression and hypothyroidism.
How serious is the interaction between Lycopus and Methimazole?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid starting lycopus in patients on methimazole where possible. If it is used, monitor TSH and free T4/T3 every 4-6 weeks and reduce the methimazole dose if hypothyroidism appears.
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。
