Morphine is a narcotic commonly used to relieve pain. The use of morphine in treatment requires a doctor's opinion to avoid risks and unwanted side effects.

Opioid pain relievers are widely used to relieve moderate to severe pain for a variety of reasons when other pain relievers are less effective, contributing significantly to improving the patient's quality of life.

Opioid withdrawal syndrome is a state of the body's response to the reduction of opioid use. Diagnosis of opioid withdrawal syndrome is based on clinical criteria and urine test results. Naloxone testing is used in cases where clinical criteria and test results are not sufficient to confirm.