Final answer:
Morphine sulfate (extended release) is used for pain management and is classified as an opioid analgesic and narcotic.
Step-by-step explanation:
Morphine sulfate (extended release) is commonly used for pain management. It is a type of opioid medication that is derived from the opium poppy plant and is utilized to alleviate moderate to severe pain, particularly in situations where constant around-the-clock medication is required for an extended period. Morphine, along with other related medications such as oxycodone, codeine, and fentanyl, functions as an analgesic, reducing pain without causing loss of consciousness at lower doses, and as a narcotic, potentially causing drowsiness and loss of consciousness at higher doses.