Drug interactions
Amlodipine-perindopril + Potassium acid
Severity: Major
Amlodipine-perindopril and Potassium acid: major 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
Perindopril reduces aldosterone-mediated potassium excretion, so potassium phosphate supplements can raise serum potassium. Hyperkalemia may cause dangerous arrhythmias, especially with renal impairment or diabetes.
What this interaction means in plain words
Amlodipine-perindopril and Potassium acid can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for.
Why it happens
ACE inhibition lowers aldosterone, decreasing renal potassium excretion and adding to potassium load.
What to do
Check serum potassium and renal function before and shortly after starting supplementation, then periodically. Use the lowest effective potassium dose and stop supplementation if potassium rises.
What to ask your pharmacist
- Does the benefit of taking both outweigh the risk in my case?
- Do I need any blood test, ECG or other check while on both?
- What early warning signs should I watch for, and what should I do if they appear?
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Other interactions of Amlodipine-perindopril
- Aliskiren + Amlodipine-perindopril Contraindicated
- Amlodipine-perindopril + Protein a column Contraindicated
- Amlodipine-perindopril + Sacubitril / valsartan Contraindicated
- Amifostine + Amlodipine-perindopril Major
- Amiloride + Amlodipine-perindopril Major
- Amlodipine-perindopril + Azilsartan Major
Frequently asked questions
Can I take Amlodipine-perindopril with Potassium acid?
MediHelp rates the interaction as major. Amlodipine-perindopril and Potassium acid can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for. Perindopril reduces aldosterone-mediated potassium excretion, so potassium phosphate supplements can raise serum potassium. Hyperkalemia may cause dangerous arrhythmias, especially with renal impairment or diabetes.
How serious is the interaction between Amlodipine-perindopril and Potassium acid?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Check serum potassium and renal function before and shortly after starting supplementation, then periodically. Use the lowest effective potassium dose and stop supplementation if potassium rises.
What other medicines interact with Amlodipine-perindopril?
MediHelp also lists interactions of Amlodipine-perindopril with, for example, Aliskiren, Protein a column, Sacubitril / valsartan. The full list is on the Amlodipine-perindopril page.
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