Drug interactions
Potassium acid + Salmeterol
Severity: Minor
Potassium acid and Salmeterol: 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 modestly, while potassium phosphate supplements raise it. The effects are opposed and usually not clinically important, but potassium may be unstable in renal impairment.
What this interaction means in plain words
Potassium acid and Salmeterol 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 effects on serum potassium: beta-2-mediated intracellular shift versus potassium supplementation.
What to do
No routine adjustment is needed. Check serum potassium in patients with renal impairment or acute illness.
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 Salmeterol
- Ritonavir + Salmeterol Contraindicated
- Salmeterol + Saquinavir Contraindicated
- Amitriptyline + Salmeterol Major
- Arformoterol + Salmeterol Major
- Atazanavir + Salmeterol Major
- Budesonide-formoterol + Salmeterol Major
Frequently asked questions
Can I take Potassium acid with Salmeterol?
MediHelp rates the interaction as minor. Potassium acid and Salmeterol 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 modestly, while potassium phosphate supplements raise it. The effects are opposed and usually not clinically important, but potassium may be unstable in renal impairment.
How serious is the interaction between Potassium acid and Salmeterol?
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 adjustment is needed. Check serum potassium in patients with renal impairment or acute illness.
What other medicines interact with Salmeterol?
MediHelp also lists interactions of Salmeterol with, for example, Ritonavir, Saquinavir, Amitriptyline. The full list is on the Salmeterol page.
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