Complex sentence: Today, it is used extensevely in medical practice for the treatment of heavy metel poisoning with Arsenic, Mercury, Lead etc.It is also used for the treatment of Wilson's disease, a genetic disorder in which the body tends to retain Copper.
Split into simpler sentences: Today, it is used extensevely in medical practice for the treatment of heavy metal poisoning byarsenic, mercury and lead. In addition, it is used for the treatment of Wilson's disease, a genetic disorder in which the body tends to retain Copper.