Drug interactions
Arformoterol + Ethinyl estradiol-drospirenone
Severity: Minor
Arformoterol and Ethinyl estradiol-drospirenone: 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
Drospirenone can raise serum potassium, while arformoterol, a beta-2 agonist, can lower it through intracellular shift. The opposing effects make the net result unpredictable, and clinically important changes are unlikely at usual doses.
What this interaction means in plain words
Arformoterol and Ethinyl estradiol-drospirenone have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Arformoterol belongs to Respiratory; Ethinyl estradiol-drospirenone belongs to Endocrine.
Why it happens
Opposing potassium effects: drospirenone antagonizes aldosterone while beta-2 stimulation drives potassium into cells.
What to do
No routine action is needed. Check serum potassium if symptoms or other risk factors for potassium disturbance are present.
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 Arformoterol
Frequently asked questions
Can I take Arformoterol with Ethinyl estradiol-drospirenone?
MediHelp rates the interaction as minor. Arformoterol and Ethinyl estradiol-drospirenone have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Drospirenone can raise serum potassium, while arformoterol, a beta-2 agonist, can lower it through intracellular shift. The opposing effects make the net result unpredictable, and clinically important changes are unlikely at usual doses.
How serious is the interaction between Arformoterol and Ethinyl estradiol-drospirenone?
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 needed. Check serum potassium if symptoms or other risk factors for potassium disturbance are present.
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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