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What Is Naltrexone? The 30-Year-Old Breakthrough Still Unknown to Most Drinkers

What Is Naltrexone? The 30-Year-Old Breakthrough Still Unknown to Most Drinkers

Naltrexone is a prescription medication approved by the Food and Drug Administration (FDA) for treating Alcohol Use Disorder (AUD). Studies have shown that naltrexone effectively reduces heavy drinking, frequency of drinking, alcohol cravings, and the likelihood of relapse. It is available in 50-milligram (mg) oral tablets, typically taken daily.

Alcohol Treatment

Think naltrexone is just another addictive drug or that it forces you to quit drinking completely? The truth about what naltrexone actually does might surprise you.

What You'll Discover:

  • What naltrexone is and how it blocks alcohol's buzz without getting you high.
  • Why this FDA-approved medication has been hidden since 1994.
  • What taking naltrexone actually feels like day to day.
  • How naltrexone lets you drink while reducing cravings (yes, really).

Alcohol Use Disorder affects 15 million Americans, destroying families, careers, and health. It's a chronic disease where you can't control drinking despite negative consequences. Among the few treatments that actually work, naltrexone has emerged as one of the most promising medications to help reduce or quit alcohol consumption.

Or at least, that's what you'd know if anyone actually told you what naltrexone is. In actuality, this medication has been FDA-approved since 1994 while millions suffer through willpower attempts that fail 90% of the time.

Many (if not most) doctors don't even know what naltrexone is for alcohol problems. After all, we've been taught that drinking issues are about character flaws and lack of willpower. But in actuality, more recent neuroscience research shows alcohol hijacks your brain's reward pathways in ways that medication can actually fix.

It may be time to understand what naltrexone is and how it works if you're tired of white-knuckling through cravings that always win.

What Is Naltrexone?

Naltrexone is an FDA-approved prescription medication that blocks opioid receptors in the brain to reduce alcohol cravings and consumption.

Available as a 50mg daily tablet or monthly injection, naltrexone prevents alcohol from triggering endorphin release.

These endorphins are the body's natural "feel-good" chemicals that reinforce drinking behavior.

Unlike other addiction medications, naltrexone is non-addictive and doesn't cause withdrawal when stopped.

It doesn't make you feel high or sedated.

Studies show naltrexone can reduce heavy drinking by 50-90% in people with alcohol use disorder.

A 2023 JAMA systematic review of 118 trials found naltrexone significantly reduces alcohol consumption and cravings.

The medication has been FDA-approved for alcohol dependence since 1994.

How Does Naltrexone Work?

Naltrexone works by binding to and blocking opioid receptors in your brain.

This prevents alcohol from causing its usual pleasurable effects.

When you drink alcohol, it normally triggers a flood of endorphins that create euphoria.

These endorphins bind to opioid receptors and trigger dopamine release, reinforcing the desire to keep drinking.

Naltrexone interrupts this reward cycle by occupying the opioid receptors.

Even if you drink, your brain doesn't get the same chemical reward.

A PET imaging study in Science Translational Medicine showed alcohol causes endorphin release in brain reward centers.

Naltrexone blocks this endorphin-dopamine cascade.

Over time, this process called "pharmacological extinction" weakens the brain's association between alcohol and pleasure.

This naturally reduces cravings and the compulsion to drink excessively.

The medication begins blocking receptors within 1-2 hours of taking it.

Effects remain active for 24-48 hours per dose.

An Opioid Blocker That Removes Alcohol's Reward

Don't let the complicated name fool you into thinking naltrexone is some experimental drug. Understanding what naltrexone is starts with knowing it's been proven safe and effective for decades.

Many researchers, addiction doctors and pharmacologists will tell you that naltrexone is an opioid antagonist - it blocks opioid receptors in your brain. Even if that sounds technical, what naltrexone is at the basic level is simple: a medication that stops alcohol from feeling rewarding. It's particularly frustrating that more people don't know what naltrexone is. For example, someone might spend $30,000 on rehab but never learn that a $35 quarterly prescription could help.

Now that you have a better idea what naltrexone is chemically, let's delve further into how it actually changes your brain's response to alcohol, some of which may be very surprising.

What Naltrexone Is Doing in Your Brain Every Time You Drink

The undeniable truth is that what naltrexone is doing involves hijacking alcohol's hijacking of your brain. There's the immediate blocking effect, as well as the gradual "unlearning" of addiction.

The Endorphin Connection That Explains Everything

This is one of the major revelations about what naltrexone is targeting. When you drink, alcohol triggers massive endorphin release - your body's natural opioids. A study published in Science Translational Medicine found that alcohol causes endorphin release in brain regions linked to reward. What naltrexone is doing is blocking these endorphins from binding to receptors. Research shows what naltrexone is accomplishing:

  • Blocks endorphin binding within 1 hour
  • Prevents dopamine cascade that follows
  • Interrupts reward-learning pathways
  • Reduces euphoric feelings from alcohol
  • Gradually extinguishes conditioned responses

What Naltrexone Is NOT - Addictive or Psychoactive

Although people worry what naltrexone is might be trading addictions, it's fundamentally different from substances that cause dependence. What naltrexone is NOT includes being addictive, causing withdrawal, or making you high. But here's what's crucial about what naltrexone is - it simply occupies receptors without activating them:

  • No euphoria or buzz whatsoever
  • No physical dependence develops
  • Zero withdrawal when stopped
  • No tolerance requiring increases
  • No abuse potential at all

What Naltrexone Is Doing to Cravings Over Time

After understanding what naltrexone is blocking acutely, the long-term effects become clear. That's because what naltrexone is achieving is called "pharmacological extinction."

Studies show what naltrexone is capable of:

  • 50-90% reduction in cravings
  • Fewer obsessive thoughts about drinking
  • Decreased interest in alcohol
  • Ability to stop at 1-2 drinks
  • Some people lose desire completely

Worried what naltrexone is won't work for your drinking pattern? Research shows effectiveness across all types of drinkers.

What Naltrexone Is Like to Actually Take

Many people are surprised to find what naltrexone is like day-to-day is unremarkable. It's now believed that what naltrexone is best at is working invisibly because:

  • No feeling of being "on something"
  • No mood changes or sedation
  • No impairment of thinking
  • Normal energy levels maintained
  • Just less interest in drinking

The Timeline of What Naltrexone Is Achieving

Another serious issue with understanding what naltrexone is involves the timeline. Even if you know what naltrexone is supposed to do, when does it work:

  1. First dose - receptors blocked in 1-2 hours
  2. First week - physical craving reduction begins
  3. First month - drinking patterns start changing
  4. Three months - significant improvement typical
  5. Six months+ - new habits solidified

The issue of giving up too soon undermines what naltrexone is trying to accomplish. There are far too many people who quit after 2 weeks thinking it's not working, but what naltrexone is doing takes time.

The Other Shocking Truth - What Naltrexone Is Allowing You to Do While Taking It

The other revolutionary aspect of what naltrexone is involves its compatibility with continued drinking. You may think all addiction meds require total abstinence, but what naltrexone is designed for is different.

Not all medications work with alcohol present, but what naltrexone is specifically good at is working whether you're drinking or not. The Sinclair Method uses naltrexone explicitly with drinking. Very few treatments offer this flexibility. More often you must quit completely or get no help at all.

What might be most troubling for traditional treatment advocates is that what naltrexone is doing actually works BETTER when you drink on it occasionally. Other evidence like a study on naltrexone's effectiveness shows targeted dosing enhances extinction learning.

What Naltrexone Is Treating - Understanding Modern AUD Diagnosis

Now with updated diagnostic criteria, we understand what naltrexone is treating exists on a spectrum. But more importantly, this changes who can benefit from learning what naltrexone is.

What's most concerning about old "alcoholism" labels is how they prevented people from learning what naltrexone is early enough. AUD includes mild, moderate and severe forms. Essentially, what naltrexone is treating doesn't require "rock bottom." That is why 15 million Americans could benefit from knowing what naltrexone is.

This is obvious when you see the criteria, but most people don't know what naltrexone is appropriate for. Mild AUD might just be drinking more than intended regularly. You don't need DUIs and liver damage to benefit from what naltrexone is offering. It will get worse without intervention.

The takeaway is that what naltrexone is treating includes ANY problematic drinking pattern - you don't need severe addiction.

The good news is what naltrexone is most effective for is mild-to-moderate AUD, preventing progression to severe stages.

What Naltrexone Is Like With Side Effects - Usually Mild and Temporary

Clearly, people worry what naltrexone is going to feel like side-effect wise. But understanding what naltrexone is actually like reveals minor, manageable effects.

In addition to what naltrexone is not (addictive), side effects are typically mild. What naltrexone is most likely to cause includes temporary nausea (resolves within days), mild stomach upset initially, occasional dizziness, and minor headaches sometimes.

Let's look at what naltrexone is like realistically. Imagine starting naltrexone and feeling queasy for 3 days. Compare that to hangovers, blackouts, and organ damage from drinking. What naltrexone is offering becomes obviously worthwhile. Most find side effects disappear within a week.

Another key consideration about what naltrexone is regarding safety - severe reactions are incredibly rare. While possible, what naltrexone is at normal doses is well-tolerated. Taking too much causes problems, but standard dosing of what naltrexone is prescribed at is safe.

NEED TO KNOW: What naltrexone is best taken with food to minimize nausea. Most side effects resolve within 3-7 days. Severe reactions to what naltrexone is are rare but need immediate medical attention.

Different Approaches to What Naltrexone Is Used For

If you're learning what naltrexone is for your drinking, understanding different protocols helps choose what fits your life.

Daily dosing of what naltrexone is involves 50mg every day regardless of drinking plans. This maintains consistent receptor blockade. What naltrexone is achieving here is round-the-clock craving reduction for abstinence or general moderation.

The Sinclair Method uses what naltrexone is differently - only before drinking. This targeted approach to what naltrexone is maximizes extinction learning. Some find this version of what naltrexone is more sustainable long-term.

Injectable naltrexone is what naltrexone is in monthly shot form. This eliminates daily pills but what naltrexone is as injection costs more and requires medical visits. It's ideal when what naltrexone is as daily pills seems too difficult.

Some start with 25mg to minimize what naltrexone is causing side-effect wise before increasing. While not standard for what naltrexone is typically prescribed at, this helps sensitive individuals. Understanding how to use naltrexone helps optimize your approach.

But here's what's critical about what naltrexone is requiring: consistency matters most. Missing doses occasionally won't ruin what naltrexone is accomplishing, but regular use of what naltrexone is provides best results.

Why What Naltrexone Is Works Better Combined With Support

The best outcomes combine what naltrexone is with other support. If you think what naltrexone is will solve everything alone, research suggests otherwise.

While some manage with just what naltrexone is, comprehensive treatment works better. What naltrexone is addresses biology while therapy handles psychology. Support groups add accountability to what naltrexone is providing.

This doesn't mean intensive rehab on top of what naltrexone is. Many succeed with what naltrexone is plus occasional counseling. The key is addressing both what naltrexone is fixing chemically and behavioral patterns.

Understanding alcohol abuse versus addiction helps determine what level of support beyond what naltrexone is you might need.

Ready to discover what naltrexone is capable of for your drinking?

If you want to understand what naltrexone is and whether it could help, if you're curious what naltrexone is like to actually take, or if you want to try what naltrexone is offering without quitting completely, professional guidance helps. Choose Your Horizon provides 100% online access to naltrexone with medical supervision.

Interested in learning what naltrexone is right for your situation? Take the online Alcohol Use Assessment to understand your drinking patterns and explore what naltrexone is capable of achieving. Plus save 30% on your doctor consultation with code NEW30.

About the author

Rob Lee
Co-founder

Passionate about helping people. Passionate about mental health. Hearing the positive feedback that my customers and clients provide from the products and services that I work on or develop is what gets me out of bed every day.

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