ACE and Hyponatremia: Zhang et al. found that the medications most frequently linked to hyponatremia were proton pump inhibitors (PPIs) (59.7%), loop diuretics (57.4%), potassium-preserving diuretics (29.5%), angiotensin-converting enzyme (ACE) inhibitors/angiotensin receptor blockers (ARBs) (20.0%), thiazide diuretics (12.5%), and non-steroidal anti-inflammatory drugs (NSAIDs) (12.4%) [15]. In our study, diuretics (13 patients on loop diuretics and 10 on thiazide diuretics) were a cause of hyponatremia in 11.5% of patients, out of which 69.5% had severe hyponatremia.