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?: (A) Desferioxamine, (B) British antilewisite, (C) Deferiprone, (D) D-Penicillamine
Answer is B. 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