1) Use hydrochlorthiazide 12.5mg combined with ACE inhibitor in one pill if possible. Else use bendroflumethiazide 2.5mg. If the patient is already receiving diuretics, spironolactone is used. Start with 25mg, maximum dose is 50mg. If kalium is above 4.3 or impaired kidney function is present start with 12.5mg. Control of kalium is paramount.