En sådan indvirkning af hydrochlorthiazid på serum- kalium kan dog forventes at blive forstærket af andre stoffer associeret med kaliumtab og hypokaliæmi (fx andre kalium- diuretika, laxantia, amphotericin, carbenoxolon, penicillin G natrium).
However, this effect of hydrochlorothiazide on serum potassium would be expected to be potentiated by other medicinal products associated with potassium loss and hypokalaemia (e. g. other kaliuretic diuretics, laxatives, amphotericin, carbenoxolone, penicillin G sodium).