藥物交互作用
Belzutifan + Desogestrel-ethinyl estradiol
嚴重程度: 嚴重
Belzutifan and Desogestrel-ethinyl estradiol: major interaction.
最後更新
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本頁的臨床內容僅提供英文版。
摘要
Belzutifan is a weak CYP3A4 inducer and may lower hormonal contraceptive concentrations, which can cause contraceptive failure or breakthrough bleeding. Belzutifan is also teratogenic, so reliable contraception is essential.
用白話說明這項交互作用的意義
Belzutifan and Desogestrel-ethinyl estradiol 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.
Belzutifan belongs to Miscellaneous; Desogestrel-ethinyl estradiol belongs to Endocrine.
為什麼會發生
Induction of CYP3A4 by belzutifan increases metabolism of contraceptive steroids.
處置方式
Use an effective non-hormonal contraceptive method during belzutifan treatment and for the period specified in labeling after the last dose. Do not rely on hormonal contraceptives alone.
可向藥師詢問的問題
- 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?
Desogestrel-ethinyl estradiol 的其他交互作用
Belzutifan 的其他交互作用
常見問題
Can I take Belzutifan with Desogestrel-ethinyl estradiol?
MediHelp rates the interaction as major. Belzutifan and Desogestrel-ethinyl estradiol 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. Belzutifan is a weak CYP3A4 inducer and may lower hormonal contraceptive concentrations, which can cause contraceptive failure or breakthrough bleeding. Belzutifan is also teratogenic, so reliable contraception is essential.
How serious is the interaction between Belzutifan and Desogestrel-ethinyl estradiol?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Use an effective non-hormonal contraceptive method during belzutifan treatment and for the period specified in labeling after the last dose. Do not rely on hormonal contraceptives alone.
What other medicines interact with Desogestrel-ethinyl estradiol?
MediHelp also lists interactions of Desogestrel-ethinyl estradiol with, for example, Fezolinetant, Aminocaproic acid, Amobarbital. The full list is on the Desogestrel-ethinyl estradiol page.
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