What is the primary function of Naloxone?

Naloxone's primary function is as an opioid antagonist that reverses the effects of opioids. This medication works by binding to the same receptors in the brain that opioids do, thereby displacing them and blocking their effects. If someone is experiencing an opioid overdose, Naloxone can quickly restore normal breathing and consciousness by counteracting the life-threatening depressive effects of the opioids on the central nervous system.

The other choices do not accurately describe Naloxone's role. It does not suppress opioid withdrawal symptoms; rather, it is used in emergency situations to reverse overdose effects. Naloxone is not a pain reliever and should not be confused with medications that are used to actively manage pain or provide relief in emergencies. Moreover, it is not an opioid used to treat addiction but a crucial tool in preventing death from opioid overdoses. This specific classification helps clarify Naloxone's unique function in public health and emergency medicine contexts.