Diuretic which can be given in mild to moderate hypeension is
Thiazides are safe, reduce clinical events. Provide additive blood pressure lowering effects wheb combined with beta blockers, Ace inhibitors or arb's. Potassium sparing diuretics are weak anti hypeensive agents Loop diuretics are reserved for hypeensive patients with reduced GFR or edema or Na retention. Ref:Harrison 20th edition pg no 1901
Loop diuretic
Thiazide
Osmotic diuretic
Potassium sparing diuretic
Kidney