This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Forensic Toxicology - Concepts, Statutes, Evidence, and Techniques, Subject name: Forensic Medicine
Antidote for magnesium sulfate toxicity is? 
Select and explain. 
A. Calcium gluconate, B. Penicillamine, C. Hydrated ferric oxide, D. Exchange resins
A: Calcium gluconate
Answer: A: Calcium gluconate 
Explanation: Ans. (a) Calcium gluconateRef. Harrison's 17le, Chapter 346