What is a common symptom of neuroleptic malignant syndrome?

Neuroleptic malignant syndrome (NMS) is a serious reaction to antipsychotic medications characterized by a range of symptoms, primarily associated with severe muscle rigidity, autonomic instability, and altered mental status. Difficulty breathing can occur in this condition due to several factors, such as muscle rigidity affecting respiratory muscles or autonomic dysfunction leading to unstable vital signs.

This symptom is particularly critical as it indicates a potential life-threatening situation that requires immediate medical attention. Recognizing this symptom, alongside others such as high fever and altered mental status, can facilitate prompt intervention and treatment, which is essential in managing NMS effectively.

In contrast, the other options do not align with the typical presentation of NMS. Weight loss, enhanced appetite, and improved sleep quality are not hallmark symptoms and can indicate completely different health issues rather than NMS.