Guanabenz acetate is used in the treatment of high blood pressure.
It is effective used alone or in combination with a thiazide type of diuretic. Guanabenz acetate begins to lower blood pressure within 60 minutes after taking a single dose and may slow your pulse rate slightly. You must take guanabenz acetate regularly for it to be effective. Guanabenz acetate may be taken with or without food. Take it exactly as prescribed.