相互作用
Folic acid + Fosphenytoin
重症度: 中等度
Folic acid and Fosphenytoin: moderate interaction.
最終更新日
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概要
Folic acid supplementation can lower phenytoin concentrations, which are the active form of fosphenytoin, and may lead to loss of seizure control. The effect is more likely with higher folate doses.
この相互作用をわかりやすく説明すると
Folic acid and Fosphenytoin 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.
Folic acid belongs to Miscellaneous; Fosphenytoin belongs to Central Nervous System.
なぜ起こるのか
Folate may increase phenytoin metabolism; the exact mechanism is not firmly established.
対処法
Monitor phenytoin levels and seizure frequency when folic acid is started or changed. Adjust the fosphenytoin dose as needed.
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?
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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、Folic acidとFosphenytoin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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Folic acid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 Folic acid with Fosphenytoin?
MediHelp rates the interaction as moderate. Folic acid and Fosphenytoin 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. Folic acid supplementation can lower phenytoin concentrations, which are the active form of fosphenytoin, and may lead to loss of seizure control. The effect is more likely with higher folate doses.
How serious is the interaction between Folic acid and Fosphenytoin?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor phenytoin levels and seizure frequency when folic acid is started or changed. Adjust the fosphenytoin dose as needed.
What other medicines interact with Folic acid?
MediHelp also lists interactions of Folic acid with, for example, Ethotoin, Glucarpidase, Methotrexate. The full list is on the Folic acid 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。
