Skip to content

Drug interactions

Ceritinib + Ethinyl estradiol-levonorgestrel

Severity: Minor

Ceritinib and Ethinyl estradiol-levonorgestrel: minor interaction.

Last updated

For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.

Summary

Ceritinib inhibits CYP3A4 and may raise levonorgestrel concentrations. The clinical effect is likely small. Ceritinib may also cause embryo-fetal harm, so reliable contraception is important.

What this interaction means in plain words

Ceritinib and Ethinyl estradiol-levonorgestrel have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.

Ceritinib belongs to Oncology; Ethinyl estradiol-levonorgestrel belongs to Endocrine.

Evidence level: Low

Why it happens

Inhibition of CYP3A4 metabolism of levonorgestrel by ceritinib.

What to do

No dose change is needed. Monitor for progestogenic adverse effects such as breast tenderness and bleeding changes.

What to ask your pharmacist

  • Is there anything I should notice while taking both?
  • Do I need to tell my doctor at the next visit?

Bring a full list of your medicines, including over-the-counter products, supplements and herbal remedies, to every pharmacy visit.

Pro+ members

Unlock the full page

Create an account and start a Pro+ trial to unlock the full management advice for Ceritinib and Ethinyl estradiol-levonorgestrel, the additional notes, the evidence detail and the whole-prescription interaction checker.

  • Full clinical management advice
  • Additional notes
  • Evidence detail
  • Interaction checker for a whole prescription

Try Pro+ free for 7 days on the web. No card needed.

Frequently asked questions

Can I take Ceritinib with Ethinyl estradiol-levonorgestrel?

MediHelp rates the interaction as minor. Ceritinib and Ethinyl estradiol-levonorgestrel have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Ceritinib inhibits CYP3A4 and may raise levonorgestrel concentrations. The clinical effect is likely small. Ceritinib may also cause embryo-fetal harm, so reliable contraception is important.

How serious is the interaction between Ceritinib and Ethinyl estradiol-levonorgestrel?

MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: No dose change is needed. Monitor for progestogenic adverse effects such as breast tenderness and bleeding changes.

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.

Full monographs, dosing and an interaction checker in the MediHelp app

Open the complete reference, check multi-drug interactions and use dosing tools in the MediHelp app.

Browse A–Z · Drug interactions

Get the app Sign in