相互作用
Dienogest / estradiol valerate + Griseofulvin
重症度: 重大
Dienogest / estradiol valerate and Griseofulvin: major interaction.
最終更新日
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概要
Griseofulvin may lower estradiol and dienogest concentrations through enzyme induction, and it has been associated with contraceptive failure and breakthrough bleeding. Reduced hormone exposure may compromise contraceptive reliability.
この相互作用をわかりやすく説明すると
Dienogest / estradiol valerate and Griseofulvin 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.
なぜ起こるのか
Induction of CYP3A4 by griseofulvin increases metabolism of estradiol and dienogest.
対処法
Advise an additional non-hormonal contraceptive method during griseofulvin treatment and for about 28 days after stopping it.
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、Dienogest / estradiol valerateとGriseofulvin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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Griseofulvinのその他の相互作用
よくある質問
Can I take Dienogest / estradiol valerate with Griseofulvin?
MediHelp rates the interaction as major. Dienogest / estradiol valerate and Griseofulvin 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. Griseofulvin may lower estradiol and dienogest concentrations through enzyme induction, and it has been associated with contraceptive failure and breakthrough bleeding. Reduced hormone exposure may compromise contraceptive reliability.
How serious is the interaction between Dienogest / estradiol valerate and Griseofulvin?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Advise an additional non-hormonal contraceptive method during griseofulvin treatment and for about 28 days after stopping it.
What other medicines interact with Griseofulvin?
MediHelp also lists interactions of Griseofulvin with, for example, Cyclosporine, Cyclosporin, Desogestrel-ethinyl estradiol. The full list is on the Griseofulvin 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。
