Det anbefales at måle serum- kalium periodisk, når Irbesartan Hydrochlorothiazide Winthrop administreres sammen med lægemidler, der påvirkes af serum- kaliumforstyrrelser (fx digitalis glykosider, antiarytmika).
Medicinal products affected by serum potassium disturbances: periodic monitoring of serum potassium is recommended when Irbesartan Hydrochlorothiazide Winthrop is administered with medicinal products affected by serum potassium disturbances (e. g. digitalis glycosides, antiarrhythmics).