The structure of mersalyl acid<unk> s are a form of renal diuretic containing mercury. Although previously widely used, they have largely been superseded by safer diuretics such as thiazides, and are hardly used anymore.
Mercurial diuretic
Potassium binder
Salt substitute
Diuretic
Calcium channel blocker
Nonsteroidal anti-inflammatory drug
Carbonic anhydrase inhibitor
Peripherally selective drug