Drug interactions
Bazedoxifene-conjugated estrogens + Quinidine
Severity: Minor
Bazedoxifene-conjugated estrogens and Quinidine: 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
Quinidine inhibits P-glycoprotein and CYP3A4 to some degree and could raise exposure to bazedoxifene or the estrogens. The clinical significance is uncertain and likely modest.
What this interaction means in plain words
Bazedoxifene-conjugated estrogens and Quinidine have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Bazedoxifene-conjugated estrogens belongs to Endocrine; Quinidine belongs to Anti Parasitic.
Why it happens
Quinidine inhibits P-glycoprotein efflux and may weakly inhibit metabolism, though the effect on this product is not well characterized.
What to do
No empiric dose change is required. Monitor for estrogen excess effects and for quinidine-related issues such as QT prolongation as usual.
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?
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Other interactions of Bazedoxifene-conjugated estrogens
- Anastrozole + Bazedoxifene-conjugated estrogens Contraindicated
- Bazedoxifene-conjugated estrogens + Ospemifene Contraindicated
- Antithrombin alfa + Bazedoxifene-conjugated estrogens Major
- Antithrombin iii + Bazedoxifene-conjugated estrogens Major
- Bazedoxifene-conjugated estrogens + Bemiparin Major
- Bazedoxifene-conjugated estrogens + Carbamazepine Major
Other interactions of Quinidine
- Adagrasib + Quinidine Contraindicated
- Arsenic trioxide + Quinidine Contraindicated
- Artemether / lumefantrine + Quinidine Contraindicated
- Chloroquine + Quinidine Contraindicated
- Dofetilide + Quinidine Contraindicated
- Dronedarone + Quinidine Contraindicated
Frequently asked questions
Can I take Bazedoxifene-conjugated estrogens with Quinidine?
MediHelp rates the interaction as minor. Bazedoxifene-conjugated estrogens and Quinidine have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Quinidine inhibits P-glycoprotein and CYP3A4 to some degree and could raise exposure to bazedoxifene or the estrogens. The clinical significance is uncertain and likely modest.
How serious is the interaction between Bazedoxifene-conjugated estrogens and Quinidine?
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 empiric dose change is required. Monitor for estrogen excess effects and for quinidine-related issues such as QT prolongation as usual.
What other medicines interact with Bazedoxifene-conjugated estrogens?
MediHelp also lists interactions of Bazedoxifene-conjugated estrogens with, for example, Anastrozole, Ospemifene, Antithrombin alfa. The full list is on the Bazedoxifene-conjugated estrogens page.
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