A 40 year old male patient complains of abdominal pain and vomiting. Patient was intoxicated by arsenic and cadmium. Which detoxifying agent can be used in this patient?
Desferioxamine
British antilewisite
Deferiprone
D-Penicillamine
The toxic effects of certain metals such as arsenic, mercury and cadmium could be overcome by administering BAL (British antilewisite).
Note: 

Desferioxamine and Deferiprone are used as chelating agents for iron overload.
D-Penicillamine is used in copper deposition in Wilson’s disease.

Satyanarayana- Biochemistry, 3rd edition, pg-642