Is Hyponatremia a side effect of Metoprolol?
Could be caused by poor kidney function
Hyponatriemia is a rare side effect of metoprolol.
If there was a gradually kidney function deterioration during years, together with arterial hypertension and medications they could lead to hyponatriemia.
And of course, if kidney function is poor, metabolism of the medications is slower, which could also lead slow heart rate.
It is good that your blood sodium has elevated, with proper diet and low doses of medication it can remain steady.
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