As nephrologists we often get called on SIADH from medications. Anti depressants a class of agents that we do consider to cause hyponatremia. Which ones are more likely vs others has always been interesting to know? A study from Denmark has a detailed look into this matter.
The odds of developing hyponatremia in one large study was the highest in clomipramine, followed by nortriptyline, citalopram, paroxetine, duloxetine, venlafaxine, sertraline and amitriptyline. It had the least odds of association with mirtazapine, mianserin and escitalopram. The development was highest in the first 2 weeks of starting treatment( with the highest incidence of hyponatremia in the first 2 weeks in citalopram and lowest in mianserin.
So, SSRI had the most association, SNRIs had slightly lower and non adrenergic specific serotogenic antidepressants had the least association.
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