<prompt> Drug not acting on neuromuscular junction is:BaclofencarisoprodolHaloperidolAll of the above  <response>: Essentials of medical pharmacology, seventh edition, page no357 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. 