Drug interactions
Ethinyl estradiol-drospirenone + Moxifloxacin
Severity: Minor
Ethinyl estradiol-drospirenone and Moxifloxacin: 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
Fluoroquinolones have been theorized to lower ethinyl estradiol exposure by affecting gut flora. Evidence of reduced contraceptive effectiveness is lacking, so the clinical risk is low.
What this interaction means in plain words
Ethinyl estradiol-drospirenone and Moxifloxacin have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Ethinyl estradiol-drospirenone belongs to Endocrine; Moxifloxacin belongs to Anti Bacterial.
Why it happens
Theoretical reduction of enterohepatic recirculation of ethinyl estradiol via altered intestinal flora; not confirmed.
What to do
No routine action is required; reinforce consistent pill use and backup contraception if gastrointestinal illness impairs absorption.
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 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 Moxifloxacin
- Amiodarone + Moxifloxacin Contraindicated
- Arsenic trioxide + Moxifloxacin Contraindicated
- Disopyramide + Moxifloxacin Contraindicated
- Dofetilide + Moxifloxacin Contraindicated
- Dronedarone + Moxifloxacin Contraindicated
- Droperidol + Moxifloxacin Contraindicated
Frequently asked questions
Can I take Ethinyl estradiol-drospirenone with Moxifloxacin?
MediHelp rates the interaction as minor. Ethinyl estradiol-drospirenone and Moxifloxacin have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Fluoroquinolones have been theorized to lower ethinyl estradiol exposure by affecting gut flora. Evidence of reduced contraceptive effectiveness is lacking, so the clinical risk is low.
How serious is the interaction between Ethinyl estradiol-drospirenone and Moxifloxacin?
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 routine action is required; reinforce consistent pill use and backup contraception if gastrointestinal illness impairs absorption.
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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