Gemini on Question 16, Sep 30

Naloxone (often known by the brand name Narcan) is a life-saving medication that can rapidly reverse an opioid overdose.

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

How Naloxone Reverses an Opioid Overdose

To understand how naloxone works, it helps to understand what happens during an opioid overdose. Opioids (like heroin, fentanyl, oxycodone, and morphine) attach to specific receptors in the brain. When a person takes too many opioids, these receptors are overwhelmed, which slows down and eventually stops the person’s breathing.

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

• 1.It has a stronger affinity: Naloxone is essentially "stickier" than opioids. It binds to the brain's opioid receptors more strongly than the opioids do.
• 2.It knocks the opioids off: Naloxone actively knocks the opioid molecules off the receptors and takes their place.
• 3.It acts as a blocker: Once attached, naloxone blocks the opioids from reattaching.
• 4.Breathing is restored: Because the opioids are no longer affecting the brain, the person’s breathing is restored, usually within 2 to 3 minutes.

Important Note: Naloxone only works on opioids. It will not reverse an overdose caused by alcohol, cocaine, methamphetamine, or benzodiazepines. However, it is completely harmless if given to someone who has not taken opioids, meaning it is always safe to administer if you are unsure.

When a Bystander Should Use Naloxone

A bystander should use naloxone immediately if they suspect someone is experiencing an opioid overdose. Because an overdose stops a person's breathing, brain damage can occur within minutes. When in doubt, always administer naloxone.

Look for the following signs of an opioid overdose:

• •Unresponsiveness: The person will not wake up to a loud voice or a firm rub on the center of their chest (a "sternum rub").
• •Breathing issues: Breathing is very slow, shallow, erratic, or has stopped completely.
• •Abnormal sounds: You may hear deep snoring, choking, or a gurgling noise (often called the "death rattle").
• •Skin color changes: In lighter-skinned individuals, the lips and fingertips may turn blue or purple. In darker-skinned individuals, the skin may look grayish or ashen. The skin may also feel cold and clammy.
• •Pinpoint pupils: The black centers of the eyes become very small (though this can be hard to check in an emergency).
• •Limp body: The person’s muscles become completely relaxed and limp.

What to Do: The Bystander Action Plan

If you see someone exhibiting these signs, follow these steps:

• 1.Check for responsiveness: Shout their name and rub your knuckles hard down the center of their chest.
• 2.Call 911: This is critical. Naloxone only lasts for 30 to 90 minutes, but opioids can stay in the system much longer. A person can slip back into an overdose once the naloxone wears off.
• 3.Administer Naloxone:
• •Nasal Spray (Narcan): Peel back the package, insert the tip of the nozzle into one nostril until your fingers touch the bottom of their nose, and press the plunger firmly.
• •Injectable: If using an intramuscular injection, inject it into the muscle of the outer thigh.
• 4.Support breathing (if trained): If the person is not breathing, perform rescue breathing or CPR if you know how. If you do not know how, roll them onto their side (the recovery position) to prevent them from choking on their vomit.
• 5.Wait and observe: Wait 2 to 3 minutes. If the person does not wake up or start breathing normally, give a second dose of naloxone (in the other nostril, if using nasal spray).
• 6.Stay with them: Stay by their side until emergency medical responders arrive.

Note: In many places, "Good Samaritan" laws protect bystanders who intervene in an overdose from being arrested or prosecuted for drug possession. Your priority should always be saving the person's life.