藥物交互作用
Cenobamate + Ethinyl estradiol-levonorgestrel
嚴重程度: 嚴重
Cenobamate and Ethinyl estradiol-levonorgestrel: major interaction.
最後更新
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摘要
Cenobamate induces CYP3A4 and can lower exposure to ethinyl estradiol and levonorgestrel. This may reduce contraceptive efficacy and raise the risk of unintended pregnancy and breakthrough bleeding.
用白話說明這項交互作用的意義
Cenobamate and Ethinyl estradiol-levonorgestrel 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.
Cenobamate belongs to Central Nervous System; Ethinyl estradiol-levonorgestrel belongs to Endocrine.
為什麼會發生
Cenobamate induces CYP3A4 (and other enzymes), increasing metabolism of both contraceptive hormones.
處置方式
Advise an additional or alternative non-hormonal contraceptive method during and for some time after cenobamate therapy. Consider a higher-dose or alternative contraceptive approach, such as an intrauterine device.
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?
Ethinyl estradiol-levonorgestrel 的其他交互作用
- Ethinyl estradiol-levonorgestrel + Fezolinetant 禁忌併用
- Ethinyl estradiol-levonorgestrel + Ombitasvir / paritaprevir / ritonavir and dasabuvir 禁忌併用
- Ethinyl estradiol-levonorgestrel + Tranexamic acid 禁忌併用
- Aminocaproic acid + Ethinyl estradiol-levonorgestrel 嚴重
- Amobarbital + Ethinyl estradiol-levonorgestrel 嚴重
- Anastrozole + Ethinyl estradiol-levonorgestrel 嚴重
Cenobamate 的其他交互作用
常見問題
Can I take Cenobamate with Ethinyl estradiol-levonorgestrel?
MediHelp rates the interaction as major. Cenobamate and Ethinyl estradiol-levonorgestrel 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. Cenobamate induces CYP3A4 and can lower exposure to ethinyl estradiol and levonorgestrel. This may reduce contraceptive efficacy and raise the risk of unintended pregnancy and breakthrough bleeding.
How serious is the interaction between Cenobamate and Ethinyl estradiol-levonorgestrel?
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 or alternative non-hormonal contraceptive method during and for some time after cenobamate therapy. Consider a higher-dose or alternative contraceptive approach, such as an intrauterine device.
What other medicines interact with Ethinyl estradiol-levonorgestrel?
MediHelp also lists interactions of Ethinyl estradiol-levonorgestrel with, for example, Fezolinetant, Ombitasvir / paritaprevir / ritonavir and dasabuvir, Tranexamic acid. The full list is on the Ethinyl estradiol-levonorgestrel page.
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