Gemini on Question 16, Sep 27

Naloxone (commonly known by the brand name Narcan) is a life-saving medication designed to rapidly reverse an opioid overdose.

Here is a breakdown of how it works and when a bystander should administer it.

How Naloxone Works

To understand how naloxone works, it helps to understand what happens during an opioid overdose.

Opioids (such as fentanyl, heroin, oxycodone, morphine, and methadone) fit into specific receptors in the brain, much like a key fitting into a lock. When a person takes too many opioids, these receptors are overwhelmed, which slows down and eventually stops the body's natural drive to breathe.

Naloxone is an opioid antagonist. Here is how it reverses the overdose:

• 1.It has a stronger bond: Naloxone has a higher "affinity" (attraction) to the brain’s opioid receptors than opioids do.
• 2.It knocks opioids off: Because of this stronger bond, naloxone literally kicks the opioid molecules off the receptors.
• 3.It blocks the receptors: Naloxone takes the place of the opioids on the receptors but does not activate them (it does not cause a high).
• 4.It restores breathing: By blocking the opioids, naloxone reverses the respiratory depression, allowing the person to start breathing normally again, usually within 2 to 5 minutes.

Note: Naloxone only works on opioids. It will not reverse overdoses caused by alcohol, benzodiazepines (like Xanax), or stimulants (like cocaine or meth), though it will not cause harm if given to someone who has taken these substances.

When a Bystander Should Use Naloxone

The golden rule of naloxone is: When in doubt, use it.

Naloxone is extremely safe. If you give naloxone to someone who is unconscious for a reason other than an opioid overdose (such as a heart attack, diabetic emergency, or alcohol poisoning), it will not hurt them.

A bystander should administer naloxone if they suspect someone is experiencing an opioid overdose. Look for the following signs:

• •Breathing issues: Breathing is very slow, shallow, erratic, or has stopped completely.
• •Sounds: The person is choking, gurgling, snoring deeply, or making a "death rattle" sound.
• •Unresponsiveness: The person is unconscious, limp, and cannot be woken up, even if you shout their name or rub your knuckles hard up and down the center of their chest (a "sternal rub").
• •Skin color changes: Lips, gums, or fingertips turn blue, purple, or grayish (depending on skin tone). The face may be very pale or clammy.
• •Eyes: Pupils are restricted to the size of a pinpoint (though this can be hard to check in an emergency).

What to Do in an Emergency

If you see the signs above, take the following steps immediately:

• 1.Call 911: Naloxone is temporary. It wears off in 30 to 90 minutes, but opioids can stay in the system much longer. Once the naloxone wears off, the person can slip back into an overdose. They need professional medical help.
• 2.Give Naloxone: Administer the naloxone. The most common form is a nasal spray. Peel back the package, insert the tip of the nozzle into one nostril, and firmly press the plunger.
• 3.Provide Rescue Breathing / CPR: If you are trained, provide rescue breaths or CPR while waiting for the naloxone to take effect.
• 4.Wait and Repeat if Necessary: Wait 2 to 3 minutes. If the person has not woken up or started breathing normally, give a second dose of naloxone in the other nostril. (Some strong synthetic opioids, like fentanyl, may require multiple doses).
• 5.Recovery Position: If the person starts breathing but remains unconscious, roll them onto their side. This prevents them from choking on their own vomit.
• 6.Stay with them: Stay by their side until emergency medical services arrive. Waking up from an overdose can be disorienting, and the person may experience immediate withdrawal symptoms (agitation, nausea, muscle aches).

Most states and provinces have "Good Samaritan" laws that protect bystanders from civil liability or drug possession charges when they call 911 and administer naloxone to save a life.