This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: NEET Jan 2020, Subject name: Psychiatry
Magnan symptoms are associated with which substance? 
Select and explain. 
A. Cocaine, B. Cannabis, C. Amphetamine, D. Alcohol
A: Cocaine
Answer: A: Cocaine 
Explanation: Intoxication of Cocaine leads to- Euphoria Sympathetic symptoms (tachycardia, palpitations, hypeension, sweating , mydriasis) Paranoid ideations + auditory hallucinations Tactile hallucinations or cocaine bugs or magnan phenomenon or formication i.esmall insects are crawling under the skin