Naloxone is a medication used to rapidly reverse opioid overdoses. It works by binding to the same receptors in the brain that opioids attach to, effectively blocking their effects. This can restore normal breathing and consciousness in someone who has overdosed on drugs like heroin or prescription painkillers. Naloxone can be administered through an injection or a nasal spray, making it easy to use in emergencies. It is often carried by first responders and can also be obtained by individuals at risk of overdose or their loved ones. Access to naloxone has been a key strategy in combating the opioid crisis.