相互作用
Efavirenz + Regorafenib
重症度: 重大
Efavirenz and Regorafenib: 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
Efavirenz is an inducer of CYP3A4 and may lower regorafenib exposure while changing the ratio of its active metabolites. This may reduce antitumour efficacy and alter the toxicity profile.
この相互作用をわかりやすく説明すると
Efavirenz and Regorafenib 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.
Efavirenz belongs to Anti Virals; Regorafenib belongs to Oncology.
なぜ起こるのか
Efavirenz induces CYP3A4, accelerating regorafenib metabolism.
対処法
Avoid concomitant use and choose an antiretroviral without enzyme-inducing effects, such as an integrase inhibitor-based regimen. If unavoidable, monitor tumour response and adverse effects closely.
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、EfavirenzとRegorafenib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
WebでPro+を7日間無料でお試し。カード登録不要。
Efavirenzのその他の相互作用
Regorafenibのその他の相互作用
よくある質問
Can I take Efavirenz with Regorafenib?
MediHelp rates the interaction as major. Efavirenz and Regorafenib 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. Efavirenz is an inducer of CYP3A4 and may lower regorafenib exposure while changing the ratio of its active metabolites. This may reduce antitumour efficacy and alter the toxicity profile.
How serious is the interaction between Efavirenz and Regorafenib?
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 concomitant use and choose an antiretroviral without enzyme-inducing effects, such as an integrase inhibitor-based regimen. If unavoidable, monitor tumour response and adverse effects closely.
What other medicines interact with Efavirenz?
MediHelp also lists interactions of Efavirenz with, for example, Cobimetinib, Dienogest / estradiol valerate, Dihydroergotamine intranasal. The full list is on the Efavirenz 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。
