This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Anesthesia, Subject name: Pharmacology
[{'content': 'Drug not acting on neuromuscular junction is: \nSelect and explain. \nA. Baclofen, B. carisoprodol, C. Haloperidol, D. All of the above', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Essentials of medical pharmacology, seventh edition, page no=357 Answer is option 4,all the above Since carisoprodol, baclofen, and haloperidol are centrally acting muscle relaxants. These are drugs which reduce skeletal muscle tone by a selective action in the cerebrospinal axis without altering consciousness.', 'role': 'assistant'}]