does narcan work for fentanyl Archives - Futures Recovery Healthcare
Does Narcan Work for Fentanyl

Does Narcan Work for Fentanyl? What To Know at a Luxury Rehab in Florida

January 25, 2026 | By: Dr. Tammy Malloy

If you are searching for luxury rehab in Florida because fentanyl has touched your life, the question behind “does Narcan work?” is usually simple: can this actually save someone’s life in time? 

The answer is yes. Narcan (naloxone) can reverse opioid overdoses, including fentanyl-related overdoses, when given quickly and followed by emergency medical care.

At Futures Recovery Healthcare, a luxury rehab in Florida, we talk about overdose response in plain language and without judgment. This article breaks down what Narcan does, explains why fentanyl overdoses can get complicated, and shows what the next step can look like when opioid use and mental health overlap.

Florida opiates recovery

What Makes Fentanyl So Dangerous

Fentanyl is a potent synthetic opioid. In medical settings, it is used for pain management, but fentanyl in the illicit drug supply is a major driver of overdose risk because people may not know it is present. 

Some people encounter fentanyl without realizing it, including through counterfeit pills made to look like prescription medications, powders sold as other drugs, or mixed substance use where fentanyl is not disclosed.

What Narcan Is and How It Works

Narcan can work in fentanyl-related overdoses, and acting fast can make the difference between life and death. Narcan is naloxone, an opioid antagonist. This means it attaches to opioid receptors and can displace opioids like fentanyl, which can help restore breathing during an overdose. 

Naloxone can:

Naloxone cannot:

A common myth is that naloxone does not work on fentanyl. It can work on fentanyl, and sometimes more than one dose is needed. 

Why Fentanyl Overdoses Sometimes Need More Than One Dose

Fentanyl’s potency and how it behaves in the body can mean naloxone response is not always “one and done.” Many real-world overdoses involve unknown dose strength, delayed discovery, or multiple substances. In these situations, breathing may not fully normalize after the first dose, or symptoms can return as naloxone wears off. That is why repeat dosing may be needed while emergency help is on the way and close monitoring remains essential.. 

Common reasons additional naloxone may be needed:

What matters most in the moment:

Recognizing an Opioid Overdose

Opioid overdose is primarily a breathing emergency. The goal is to act quickly, even if you are not 100 percent sure what substance was involved.

Signs that require immediate action:

When in doubt:

How Naloxone Is Available Now

Access has improved in the U.S. In March 2023, the FDA approved Narcan 4 mg nasal spray for over-the-counter use. In July 2023, the FDA approved RiVive 3 mg nasal spray as another over-the-counter option. For the most accurate product-specific instructions, always follow the packaging and seek emergency medical help right away.

Common naloxone formats include:

Some prescription nasal sprays deliver a higher dose per spray. For example, Kloxxado’s label describes an 8 mg intranasal dose with repeat dosing guidance if needed. 

dual diagnosis addiction care

What Happens After an Overdose

Even when someone wakes up, the situation may not be over. Naloxone can wear off before the opioid does, and breathing problems can return. A person may seem alert, then become drowsy again, so continued monitoring and emergency medical evaluation remain important.

Why medical evaluation matters after naloxone:

This is also the point where many families realize the crisis is not only about fentanyl. It is about risk, coping, isolation, trauma, depression, anxiety, or all of the above.

How This Connects to CORE and Dual Diagnosis Care

A fentanyl emergency is often the visible tip of something deeper. Many people dealing with opioid use are also managing mental health symptoms, trauma exposure, chronic stress, or mood instability. Treating only one side of the picture can leave the same drivers in place.

Futures Recovery Healthcare’s CORE Program is designed for integrated dual diagnosis treatment, combining medical, clinical, and wellness services across a continuum of care: 

Integrated care can address:

For families choosing a luxury rehab in Florida, the goal is more than comfort. It is coordinated care, clinical depth, privacy, and a setting that supports stabilization without shame.

opioid overdose response

Next Steps After Narcan

Narcan can work in fentanyl-related overdoses, and acting fast can make the difference between life and death. Because fentanyl is so potent and situations often involve unknown amounts or mixed substances, some people may need more than one dose while help is on the way.

Even if someone wakes up, it is still critical to get medical evaluation and keep monitoring breathing, since overdose symptoms can return after naloxone wears off. After the emergency passes, the most effective path forward often involves dual diagnosis care that addresses both opioid use and the mental health factors that may be driving risk.

Tammy Malloy, PhD, LCSW, CSAT

Chief Executive Officer

Dr. Tammy Malloy holds a PhD in Social Work from Barry University and is a Licensed Clinical Social Worker (LCSW) as well as a Certified Sex Addiction Therapist (CSAT). With over 20 years of experience in behavioral health, Dr. Malloy specializes in trauma-informed care, family systems, and high-risk behaviors encompassing all addictive disorders.

She has extensive expertise in psychometric assessments for clinical outcomes and diagnosis, with a recent focus on integrating AI technologies into mental health care.

Dr. Malloy is a published researcher, contributing to academic journals on addiction, depression, spirituality, and clinical personality pathology, and has facilitated research for more than a decade. She is a sought-after speaker, presenting at national and international conferences on substance use disorders, co-occurring mental health conditions, and high-risk sexual behaviors.

Passionate about advancing the field, Dr. Malloy is dedicated to teaching, empowering others, and improving quality of life for patients and staff alike.

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