相互作用
Fosphenytoin + Lurasidone
重症度: 併用禁忌
Fosphenytoin and Lurasidone: contraindicated interaction.
最終更新日
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概要
Fosphenytoin is converted to phenytoin, a strong CYP3A4 inducer that can reduce lurasidone exposure dramatically. This may lead to loss of antipsychotic efficacy and relapse. Strong inducers are contraindicated with lurasidone.
この相互作用をわかりやすく説明すると
Fosphenytoin and Lurasidone are not normally used together. Taking them at the same time is expected to cause harm or make one of them unsafe, so a different medicine is usually chosen for one of the two.
Fosphenytoin belongs to Central Nervous System; Lurasidone belongs to Central Nervous System.
なぜ起こるのか
Induction of CYP3A4 by phenytoin increases lurasidone clearance.
対処法
Avoid the combination; use an alternative anticonvulsant or an antipsychotic not dependent on CYP3A4, and monitor psychiatric status.
薬剤師に尋ねること
- Is there an alternative to one of these two medicines for me?
- If both are essential, who is monitoring me and how often?
- Which symptoms mean I should stop and seek help straight away?
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、FosphenytoinとLurasidone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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Lurasidoneのその他の相互作用
Fosphenytoinのその他の相互作用
よくある質問
Can I take Fosphenytoin with Lurasidone?
MediHelp rates the interaction as contraindicated. Fosphenytoin and Lurasidone are not normally used together. Taking them at the same time is expected to cause harm or make one of them unsafe, so a different medicine is usually chosen for one of the two. Fosphenytoin is converted to phenytoin, a strong CYP3A4 inducer that can reduce lurasidone exposure dramatically. This may lead to loss of antipsychotic efficacy and relapse. Strong inducers are contraindicated with lurasidone.
How serious is the interaction between Fosphenytoin and Lurasidone?
MediHelp rates it contraindicated, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid the combination; use an alternative anticonvulsant or an antipsychotic not dependent on CYP3A4, and monitor psychiatric status.
What other medicines interact with Lurasidone?
MediHelp also lists interactions of Lurasidone with, for example, Apalutamide, Atazanavir, Carbamazepine. The full list is on the Lurasidone 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。
