Which effect is NOT associated with narcotic analgesics?

Narcotic analgesics, or opioids, are primarily used for their pain-relieving properties and often have several notable effects on the body. Among the various effects commonly associated with narcotic analgesics are the ability to relieve chronic pain, induce euphoria, and produce sedation.

When it comes to the impact on heart rate, narcotic analgesics typically produce the opposite effect; they tend to cause a decrease in heart rate rather than an increase. This is due to their action on the central nervous system, where they can lead to respiratory depression and sedation, which generally leads to a lower heart rate. Therefore, indicating that narcotic analgesics would increase heart rate does not align with their known physiological effects.

Understanding these nuances about narcotic analgesics is crucial. The other options accurately reflect common outcomes of their use, while the incorrect association with increased heart rate helps clarify the distinct physiological effects of these medications.