<unk>  (Mersal) is an organomercury compound.  It is only rarely used as a drug, having been superseded by diuretic medications that do not contain mercury and are therefore less toxic.  It features a Hg(II) centre.<unk>  was originally adapted from calomel (HgCl), a diuretic discovered by Paracelsus.
Mersalyl acid
Carbasalate calcium
Undecylenic acid
Ioxaglic acid
Choline alfoscerate
Aluminium hydroxide
Perflubron
Silver nitrate