Drugs that inhibit the renin-angiotensin-aldosterone system, such as ACE inhibitors and ARBs, can cause potassium retention.
Is it true that drugs that inhibit the renin-angiotensin-aldosterone system, such as ACE inhibitors and ARBs, can cause potassium retention?
Yes. Drugs that inhibit the renin-angiotensin-aldosterone system, such as ACE inhibitors and ARBs, are well documented to cause potassium retention, frequently leading to hyperkalemia in vulnerable patient populations.
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The retrieved literature consistently confirms that renin-angiotensin-aldosterone system (RAAS) inhibitors (including ACE inhibitors and ARBs) reduce potassium excretion and carry a well-documented risk of hyperkalemia (potassium retention). Multiple papers discuss this as a major clinical side effect or limiting factor in their use.
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Mae, H., Fujimaru, T., Shimoyama, K., Kadota, N., Konishi, K., Itou, Y., Nagahama, M., Taki, F., & Nakayama, M. (2024). Association of serum sodium minus chloride level at initiation of angiotensin-converting enzyme inhibitors or angiotensin receptor blockers and hyperkalemia in patients with CKD: a case control study. doi.org. https://doi.org/10.1186/s41100-024-00541-3
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S, G., A, V., B, P., & IZ, J. (2026). Mechanisms for Mineralocorticoid-Driven Age-Related Hypertension: Potential Therapeutic Role of Mineralocorticoid Receptor Antagonists and Aldosterone Synthase Inhibitors.. doi.org. https://doi.org/10.1161/circresaha.126.327593
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Coats, A. J. (2022). Abstract 13512: Patiromer to Manage Hyperkalemia in Patients Receiving Optimized Renin-Angiotensin-Aldosterone System Inhibitors for Heart Failure (DIAMOND): Prespecified Analysis of Patients With Hyperkalemia or Previous Hyperkalemia. doi.org. https://doi.org/10.1161/circ.146.suppl_1.13512
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A, D., P, I., A, V., E, S., A, S., K, D., D, P., & K, T. (2026). New pharmacologic and interventional horizons in hypertension and nondialysis chronic kidney disease: bridging innovation and clinical translation.. doi.org. https://doi.org/10.1097/hjh.0000000000004439
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MJ, Y. & S, L. (2026). Impact of the Four Pillars on Electrolyte Derangements during State-of-the-Art Therapy for Diabetic Kidney Disease.. doi.org. https://doi.org/10.5049/ebp.2026.24.e13
What does the evidence say?
The retrieved literature consistently confirms that renin-angiotensin-aldosterone system (RAAS) inhibitors (including ACE inhibitors and ARBs) reduce potassium excretion and carry a well-documented risk of hyperkalemia (potassium retention). Multiple papers discuss this as a major clinical side effect or limiting factor in their use.
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