相互作用
Ganaxolone + Phenytoin
重症度: 重大
Ganaxolone and Phenytoin: major interaction.
最終更新日
医療従事者向け・参照専用。このページは簡潔な要約であり、医学的助言ではなく、公式の添付文書や臨床判断に代わるものではありません。処方・調剤の前に必ず確認してください。
このページの臨床コンテンツは英語でのみ提供されています。
概要
Phenytoin can lower ganaxolone concentrations through CYP3A4 induction, potentially reducing seizure control in CDKL5 deficiency disorder. Ganaxolone labeling advises avoiding moderate and strong CYP3A4 inducers.
この相互作用をわかりやすく説明すると
Ganaxolone and Phenytoin can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for.
Ganaxolone belongs to Central Nervous System; Phenytoin belongs to Central Nervous System.
なぜ起こるのか
Phenytoin induces CYP3A4, accelerating ganaxolone metabolism.
対処法
Avoid the combination where possible. If unavoidable, consider increasing the ganaxolone dose within the maximum for the patient's weight and monitor seizure frequency and sedation.
薬剤師に尋ねること
- Does the benefit of taking both outweigh the risk in my case?
- Do I need any blood test, ECG or other check while on both?
- What early warning signs should I watch for, and what should I do if they appear?
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、Ganaxolone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
Ganaxoloneのその他の相互作用
よくある質問
Can I take Ganaxolone with Phenytoin?
MediHelp rates the interaction as major. Ganaxolone and Phenytoin can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for. Phenytoin can lower ganaxolone concentrations through CYP3A4 induction, potentially reducing seizure control in CDKL5 deficiency disorder. Ganaxolone labeling advises avoiding moderate and strong CYP3A4 inducers.
How serious is the interaction between Ganaxolone and Phenytoin?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid the combination where possible. If unavoidable, consider increasing the ganaxolone dose within the maximum for the patient's weight and monitor seizure frequency and sedation.
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。
