Drug interactions
Pentamidine + Potassium citrate-citric acid
Severity: Moderate
Pentamidine and Potassium citrate-citric acid: moderate 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
Systemic pentamidine can cause hyperkalemia through effects on the distal nephron. Combined with potassium salts, serum potassium may climb higher than expected.
What this interaction means in plain words
Pentamidine and Potassium citrate-citric acid can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.
Pentamidine belongs to Anti Parasitic; Potassium citrate-citric acid belongs to Gastrointestinal Tract.
Why it happens
Pentamidine blocks epithelial sodium channels in the distal nephron, reducing potassium excretion, which adds to the potassium supplied.
What to do
Measure serum potassium before and during pentamidine therapy. Hold potassium supplementation if levels rise.
What to ask your pharmacist
- Should I take them at different times of day?
- Does the dose of either medicine need to change?
- Is there anything I should avoid, such as alcohol or certain foods, while on both?
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Other interactions of Potassium citrate-citric acid
Other interactions of Pentamidine
- Clomipramine + Pentamidine Contraindicated
- Desipramine + Pentamidine Contraindicated
- Dronedarone + Pentamidine Contraindicated
- Moxifloxacin + Pentamidine Contraindicated
- Nortriptyline + Pentamidine Contraindicated
- Pentamidine + Pimozide Contraindicated
Frequently asked questions
Can I take Pentamidine with Potassium citrate-citric acid?
MediHelp rates the interaction as moderate. Pentamidine and Potassium citrate-citric acid can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Systemic pentamidine can cause hyperkalemia through effects on the distal nephron. Combined with potassium salts, serum potassium may climb higher than expected.
How serious is the interaction between Pentamidine and Potassium citrate-citric acid?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Measure serum potassium before and during pentamidine therapy. Hold potassium supplementation if levels rise.
What other medicines interact with Potassium citrate-citric acid?
MediHelp also lists interactions of Potassium citrate-citric acid with, for example, Amiloride, Eplerenone, Finerenone. The full list is on the Potassium citrate-citric acid page.
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