相互作用
Ethinyl estradiol-drospirenone + Fezolinetant
重症度: 併用禁忌
Ethinyl estradiol-drospirenone and Fezolinetant: contraindicated interaction.
最終更新日
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概要
Fezolinetant is metabolized mainly by CYP1A2, and ethinyl estradiol is a weak CYP1A2 inhibitor that can raise fezolinetant exposure. Fezolinetant labeling contraindicates use with CYP1A2 inhibitors, and its indication for menopausal vasomotor symptoms means combined contraceptive use is rarely appropriate anyway. Increased exposure raises the risk of hepatotoxicity.
この相互作用をわかりやすく説明すると
Ethinyl estradiol-drospirenone and Fezolinetant are not normally used together. Taking them at the same time is expected to cause harm or make one of them unsafe, so a different medicine is usually chosen for one of the two.
Ethinyl estradiol-drospirenone belongs to Endocrine; Fezolinetant belongs to Endocrine.
なぜ起こるのか
Ethinyl estradiol inhibits CYP1A2, reducing fezolinetant metabolism and increasing its plasma concentration.
対処法
Avoid coadministration. Use an alternative approach for vasomotor symptoms or contraception, and monitor liver tests if fezolinetant is used.
薬剤師に尋ねること
- Is there an alternative to one of these two medicines for me?
- If both are essential, who is monitoring me and how often?
- Which symptoms mean I should stop and seek help straight away?
Pro+会員向け
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アカウントを作成してPro+トライアルを始めると、Ethinyl estradiol-drospirenoneとFezolinetant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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Ethinyl estradiol-drospirenoneのその他の相互作用
- Ethinyl estradiol-drospirenone + Ombitasvir / paritaprevir / ritonavir 併用禁忌
- Ethinyl estradiol-drospirenone + Ombitasvir / paritaprevir / ritonavir and dasabuvir 併用禁忌
- Ethinyl estradiol-drospirenone + Tranexamic acid 併用禁忌
- Aminocaproic acid + Ethinyl estradiol-drospirenone 重大
- Amobarbital + Ethinyl estradiol-drospirenone 重大
- Anastrozole + Ethinyl estradiol-drospirenone 重大
Fezolinetantのその他の相互作用
よくある質問
Can I take Ethinyl estradiol-drospirenone with Fezolinetant?
MediHelp rates the interaction as contraindicated. Ethinyl estradiol-drospirenone and Fezolinetant are not normally used together. Taking them at the same time is expected to cause harm or make one of them unsafe, so a different medicine is usually chosen for one of the two. Fezolinetant is metabolized mainly by CYP1A2, and ethinyl estradiol is a weak CYP1A2 inhibitor that can raise fezolinetant exposure. Fezolinetant labeling contraindicates use with CYP1A2 inhibitors, and its indication for menopausal vasomotor symptoms means combined contraceptive use is rarely appropriate anyway. Increased exposure raises the risk of hepatotoxicity.
How serious is the interaction between Ethinyl estradiol-drospirenone and Fezolinetant?
MediHelp rates it contraindicated, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid coadministration. Use an alternative approach for vasomotor symptoms or contraception, and monitor liver tests if fezolinetant is used.
What other medicines interact with Ethinyl estradiol-drospirenone?
MediHelp also lists interactions of Ethinyl estradiol-drospirenone with, for example, Ombitasvir / paritaprevir / ritonavir, Ombitasvir / paritaprevir / ritonavir and dasabuvir, Tranexamic acid. The full list is on the Ethinyl estradiol-drospirenone 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。
