藥物交互作用
Lycopus + Methimazole
嚴重程度: 中度
Lycopus and Methimazole: moderate interaction.
最後更新
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摘要
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.
用白話說明這項交互作用的意義
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.
為什麼會發生
Additive antithyroid pharmacodynamic effects, with lycopus inhibiting TSH binding and peripheral T4 to T3 conversion.
處置方式
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.
可向藥師詢問的問題
- 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?
Methimazole 的其他交互作用
常見問題
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.
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