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Ziprasidone and Estradiol Interaction

Drug interaction information between Ziprasidone and Estradiol.

Ziprasidone and Estradiol have a documented minor interaction in FDA labeling.

FDA drug labeling documents a minor-severity interaction between Ziprasidone and Estradiol. Major interactions are generally avoided, moderate ones may need monitoring or a dose adjustment, and minor ones are usually low-risk. This page shows the documented mechanism and guidance. Label-documented interactions are not a complete safety review, so always confirm your own medications with a pharmacist or doctor. Educational information, not medical advice.

Drug A

Ziprasidone

Atypical Antipsychotic

Drug B

Estradiol

Estrogen Hormone

How They Interact

Ziprasidone does not change the way the body breaks down or removes estradiol from the system. This means the levels of the hormone in your blood stay the same.

What To Do

You can safely take these medications together without needing to adjust your dose. Your birth control or hormone therapy should work as expected.

FDA Label Information

Ziprasidone at a dose of 20 mg twice daily did not affect the pharmacokinetics of concomitantly administered oral contraceptives, ethinyl estradiol (0.03 mg) and levonorgestrel (0.15 mg).

Ziprasidone Also Interacts With

View all Ziprasidone interactions →

Frequently Asked Questions

Can I take Ziprasidone and Estradiol together?

This is a minor interaction. You can safely take these medications together without needing to adjust your dose. Your birth control or hormone therapy should work as expected.

How serious is the interaction between Ziprasidone and Estradiol?

This interaction is classified as "minor" severity by the FDA. Minor interactions are unlikely to cause significant problems but should still be mentioned to your healthcare provider.

Why do Ziprasidone and Estradiol interact?

Ziprasidone does not change the way the body breaks down or removes estradiol from the system. This means the levels of the hormone in your blood stay the same.

Understanding the Ziprasidone and Estradiol Interaction

FDA-approved prescribing information for these two drugs flags their combination as a minor-severity interaction. Ziprasidone belongs to the Atypical Antipsychotic class and Estradiol belongs to the Estrogen Hormone class - two categories that can collide when co-prescribed. The mechanism described in FDA labeling is: Ziprasidone does not change the way the body breaks down or removes estradiol from the system. Severity tiers matter: major flags generally advise avoidance, moderate flags often require monitoring or dose adjustment, and minor flags may only call for awareness.

Context around a specific patient determines real-world impact. Ziprasidone has 18 total documented interactions on file in this dataset, and Estradiol has 54. Each additional medication compounds the interaction surface, which is why pharmacists run full-profile checks rather than evaluating one pair at a time. FDA-derived guidance for this pair is: You can safely take these medications together without needing to adjust your dose. Timing of doses, renal and hepatic function, age, and other concurrent prescriptions all shape whether a labeled interaction matters clinically.

An interaction flag is not a verdict. A large share of labeled interactions are managed routinely in clinical practice, the fix may be as simple as spacing doses or adding a monitoring test. Others require the prescriber to choose a different medication entirely. This page surfaces FDA-sourced labeling and openFDA data for educational purposes only; it is not medical advice and cannot account for your full clinical picture. Never start, stop, or adjust either Ziprasidone or Estradiol based on a web page, speak with your prescriber or pharmacist before making any change.

Sources: FDA Drug Labels (SPL) via openFDA (2026). This is for informational purposes only and is not medical advice. Always consult your healthcare provider about drug interactions.