相互作用
Avatrombopag + Phenytoin
重症度: 中等度
Avatrombopag and Phenytoin: moderate interaction.
最終更新日
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概要
Phenytoin induces CYP2C9 and CYP3A4, both of which metabolise avatrombopag. Platelet response to avatrombopag may be reduced.
この相互作用をわかりやすく説明すると
Avatrombopag and Phenytoin 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.
Avatrombopag belongs to Miscellaneous; Phenytoin belongs to Central Nervous System.
なぜ起こるのか
Phenytoin induces CYP2C9 and CYP3A4, accelerating avatrombopag clearance.
対処法
In ITP, use the higher avatrombopag starting dose recommended in labeling for dual inducers. Monitor platelet counts and adjust the dose accordingly.
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、AvatrombopagとPhenytoin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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Phenytoinのその他の相互作用
Avatrombopagのその他の相互作用
よくある質問
Can I take Avatrombopag with Phenytoin?
MediHelp rates the interaction as moderate. Avatrombopag and Phenytoin 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. Phenytoin induces CYP2C9 and CYP3A4, both of which metabolise avatrombopag. Platelet response to avatrombopag may be reduced.
How serious is the interaction between Avatrombopag and Phenytoin?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: In ITP, use the higher avatrombopag starting dose recommended in labeling for dual inducers. Monitor platelet counts and adjust the dose accordingly.
What other medicines interact with Phenytoin?
MediHelp also lists interactions of Phenytoin with, for example, Artemether / lumefantrine, Bictegravir, Cabotegravir. The full list is on the Phenytoin 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。
