This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Forensic Medicine
Antidote for copper poisoning is: March 2009 
Select and explain. 
A. D-penicillamine, B. Potassium ferrocyanide, C. BAL, D. Desferrioxamine
B: Potassium ferrocyanide
Answer: B: Potassium ferrocyanide 
Explanation: Ans. B: Potassium ferrocyanide Treatment of copper poisoning: Stomach wash with 1 percent solution of potassium ferrocyanide which acts as an antidote by forming an insoluble cupric ferrocyanide Emetics are contraindicated Demulcent drinks form insoluble albuminate of copper Castor oil Chelation with penicillamine/ EDTA/ BAL