What is mercury poisoning? Mercury poisoning also known as hydrargyria or mercurialism is a type of metal poisoning and a medical condition caused by exposure to mercury or its compounds. Mercury (chemical symbol Hg) is a heavy metal occurring in several forms. All of these, except elemental liquid mercury (for which intravenous injection of a comparable volume can be nonlethal produce toxicity or death with less than a gram. Elemental mercury causes damage by blocking blood vessels. What are the Effects of Mercury Poisoning There is Scientific evidence to show once it reaches its destination of a tissue or cell, it expresses its toxicity. Mercury poisoning has the following effects on the body It contribute to antibiotic resistance It can hinder the function of enzymes It inhibits DNA repairs It displaces other good minerals in the body. It can also alter the cell's ability to control the exchange of materials coming into and going out of the cell and m