This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Poisoning, Subject name: Anatomy
All are cerebral neurotics except 
Select and explain. 
A. Opioids, B. Alcohol, C. Nux vomica, D. Cannabis
C: Nux vomica
Answer: C: Nux vomica 
Explanation: Neurotics: Ref: FORENSIC MEDICINE AND TOXICOLOGY Dr PC IGNATIUS THIRD EDITION PAGE 399