Drug interactions
Fluticasone-salmeterol + Potassium acid
Severity: Minor
Fluticasone-salmeterol and Potassium acid: 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
Salmeterol can lower serum potassium by driving potassium into cells, while potassium phosphate supplements raise it. The opposing effects are usually clinically unimportant, but potassium may need monitoring in patients with renal impairment or high-dose beta-agonist use.
What this interaction means in plain words
Fluticasone-salmeterol and Potassium acid have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Why it happens
Opposing pharmacodynamic effects on serum potassium: beta-2 stimulation causes intracellular shift, while supplementation adds potassium.
What to do
Check serum potassium when starting or adjusting either agent in patients at risk of potassium disturbance. No routine dose change is needed.
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 Fluticasone-salmeterol
- Darunavir + Fluticasone-salmeterol Contraindicated
- Elvitegravir / cobicistat / emtricitabine / tenofovir df + Fluticasone-salmeterol Contraindicated
- Fluticasone-salmeterol + Fosamprenavir Contraindicated
- Fluticasone-salmeterol + Indinavir Contraindicated
- Fluticasone-salmeterol + Lopinavir Contraindicated
- Fluticasone-salmeterol + Nelfinavir Contraindicated
Frequently asked questions
Can I take Fluticasone-salmeterol with Potassium acid?
MediHelp rates the interaction as minor. Fluticasone-salmeterol and Potassium acid have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Salmeterol can lower serum potassium by driving potassium into cells, while potassium phosphate supplements raise it. The opposing effects are usually clinically unimportant, but potassium may need monitoring in patients with renal impairment or high-dose beta-agonist use.
How serious is the interaction between Fluticasone-salmeterol and Potassium acid?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Check serum potassium when starting or adjusting either agent in patients at risk of potassium disturbance. No routine dose change is needed.
What other medicines interact with Fluticasone-salmeterol?
MediHelp also lists interactions of Fluticasone-salmeterol with, for example, Darunavir, Elvitegravir / cobicistat / emtricitabine / tenofovir df, Fosamprenavir. The full list is on the Fluticasone-salmeterol page.
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