<prompt> True about acetazolamideIncrease sodium reabsorption and potassium secretionCarbonic anhydrase inhibitorActs at ascending limb of loop of HenleIncrease aqueous outflow mainly  <response>: Ref: Katzungs, 11th ed. pg. 416 Acetazolamide is a carbonic anhydrase inhibitor which acts on the proximal tubule of nephron. In kidney, it inhibits H secretion and HCO3 reabsorption, which inturn reduces sodium reabsorption. In eye, it reduces the aqueous formation by limiting generation of bicarbonate ion in ciliary epithelium. 