Interactions médicamenteuses
Belzutifan + Ethinyl estradiol-levonorgestrel
Gravité: Majeure
Belzutifan and Ethinyl estradiol-levonorgestrel: major interaction.
Dernière mise à jour
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Résumé
Belzutifan induces CYP3A4 and can reduce hormonal contraceptive exposure, leading to contraceptive failure or breakthrough bleeding. Belzutifan is teratogenic, so pregnancy prevention is critical.
Ce que signifie cette interaction, en termes simples
Belzutifan 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.
Belzutifan belongs to Miscellaneous; Ethinyl estradiol-levonorgestrel belongs to Endocrine.
Pourquoi elle survient
CYP3A4 induction by belzutifan increases metabolism of ethinyl estradiol and levonorgestrel.
Conduite à tenir
Use an effective nonhormonal contraceptive during treatment and for the period in labeling after the last dose. Do not rely on hormonal methods alone.
Questions à poser à votre pharmacien
- 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?
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Autres interactions de Ethinyl estradiol-levonorgestrel
- Ethinyl estradiol-levonorgestrel + Fezolinetant Contre-indiquée
- Ethinyl estradiol-levonorgestrel + Ombitasvir / paritaprevir / ritonavir and dasabuvir Contre-indiquée
- Ethinyl estradiol-levonorgestrel + Tranexamic acid Contre-indiquée
- Aminocaproic acid + Ethinyl estradiol-levonorgestrel Majeure
- Amobarbital + Ethinyl estradiol-levonorgestrel Majeure
- Anastrozole + Ethinyl estradiol-levonorgestrel Majeure
Autres interactions de Belzutifan
Questions fréquentes
Can I take Belzutifan with Ethinyl estradiol-levonorgestrel?
MediHelp rates the interaction as major. Belzutifan 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. Belzutifan induces CYP3A4 and can reduce hormonal contraceptive exposure, leading to contraceptive failure or breakthrough bleeding. Belzutifan is teratogenic, so pregnancy prevention is critical.
How serious is the interaction between Belzutifan 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: Use an effective nonhormonal contraceptive during treatment and for the period in labeling after the last dose. Do not rely on hormonal methods alone.
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.
Monographies complètes, posologies et vérificateur d'interactions dans l'application MediHelp
Ouvrez le référentiel complet, vérifiez les interactions entre plusieurs médicaments et utilisez les outils de posologie dans l'application MediHelp.
