Drug interactions
Ethinyl estradiol-drospirenone + Tazemetostat
Severity: Moderate
Ethinyl estradiol-drospirenone and Tazemetostat: moderate 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
Tazemetostat is a weak-to-moderate CYP3A4 inducer and may reduce ethinyl estradiol and drospirenone exposure, risking contraceptive failure. Tazemetostat can also harm a fetus, so contraceptive reliability matters.
What this interaction means in plain words
Ethinyl estradiol-drospirenone and Tazemetostat can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.
Ethinyl estradiol-drospirenone belongs to Endocrine; Tazemetostat belongs to Miscellaneous.
Why it happens
CYP3A4 induction by tazemetostat increases hormone metabolism; hormones may in turn modestly affect tazemetostat exposure.
What to do
Use an additional non-hormonal method during tazemetostat treatment and for a period after the last dose, as stated in labeling.
What to ask your pharmacist
- Should I take them at different times of day?
- Does the dose of either medicine need to change?
- Is there anything I should avoid, such as alcohol or certain foods, while on both?
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Other interactions of Ethinyl estradiol-drospirenone
- Ethinyl estradiol-drospirenone + Fezolinetant Contraindicated
- Ethinyl estradiol-drospirenone + Ombitasvir / paritaprevir / ritonavir Contraindicated
- Ethinyl estradiol-drospirenone + Ombitasvir / paritaprevir / ritonavir and dasabuvir Contraindicated
- Ethinyl estradiol-drospirenone + Tranexamic acid Contraindicated
- Aminocaproic acid + Ethinyl estradiol-drospirenone Major
- Amobarbital + Ethinyl estradiol-drospirenone Major
Other interactions of Tazemetostat
Frequently asked questions
Can I take Ethinyl estradiol-drospirenone with Tazemetostat?
MediHelp rates the interaction as moderate. Ethinyl estradiol-drospirenone and Tazemetostat can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Tazemetostat is a weak-to-moderate CYP3A4 inducer and may reduce ethinyl estradiol and drospirenone exposure, risking contraceptive failure. Tazemetostat can also harm a fetus, so contraceptive reliability matters.
How serious is the interaction between Ethinyl estradiol-drospirenone and Tazemetostat?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Use an additional non-hormonal method during tazemetostat treatment and for a period after the last dose, as stated in labeling.
What other medicines interact with Ethinyl estradiol-drospirenone?
MediHelp also lists interactions of Ethinyl estradiol-drospirenone with, for example, Fezolinetant, Ombitasvir / paritaprevir / ritonavir, Ombitasvir / paritaprevir / ritonavir and dasabuvir. The full list is on the Ethinyl estradiol-drospirenone page.
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