Both morphine and codeine are analgesics, which means that they:

A. activate the central nervous system
B. relieve pain and produce euphoria
C. increase alertness
D. cause delusions and dissociative experiences

Respuesta :

B. relieve pain and produce euphoria

Morphine and codeine are both opioids and are primarily used for their pain-relieving (analgesic) properties, and they can also produce a sense of euphoria.