What are withdrawl symptoms of not taking hydrochlorothiozide?

Stopping HCTZ (hydrochlorothiazide) There are no acute withdrawal symptoms of stopping hydrochlorothiazide (hctz). You may gain some fluid weight, as it is a diuretic. Your potassium and magnesium levels may be higher, as hctz is known to lower them. Before you stop any medication prescribed by your physician, discuss it with him first.