Naltrexone is an opioid receptor antagonist used primarily in the treatment of alcohol dependence and opioid addiction. By blocking the effects of opioids, it helps reduce cravings and withdrawal symptoms, promoting recovery and relapse prevention.

Naltrexone Hydrochloride FAQ


What is Naltrexone used for?

Naltrexone is primarily used for managing alcohol dependence and treating opioid addiction.

How does Naltrexone work?

It works by blocking opioid receptors in the brain, which reduces the pleasurable effects of alcohol and opioids.

What are common side effects of Naltrexone?

Some common side effects include nausea, headache, dizziness, and fatigue.

Can Naltrexone be used for weight loss?

Naltrexone is sometimes used off-label for weight loss, often in combination with bupropion.

Is a prescription needed for Naltrexone?

Yes, Naltrexone is available only with a prescription from a healthcare provider.

How long does it take for Naltrexone to work?

Naltrexone can start working within a few hours, but its full effects may take several weeks.

Can I drink alcohol while taking Naltrexone?

It is advised to avoid alcohol as it can counteract the benefits of Naltrexone.

Is Naltrexone safe for everyone?

Naltrexone is not suitable for individuals with certain medical conditions; consult your doctor.

What should I do if I miss a dose of Naltrexone?

If you miss a dose, take it as soon as you remember unless it’s almost time for the next dose.

Can I stop taking Naltrexone suddenly?

Do not stop taking Naltrexone abruptly without consulting your healthcare provider.

Does Naltrexone have addiction potential?

Naltrexone is non-addictive and is used specifically to help prevent addiction.

What should I avoid while taking Naltrexone?

Avoid opioid drugs, as they can lead to withdrawal symptoms and may not be effective.

How is Naltrexone administered?

Naltrexone can be taken as a pill or injected as a monthly depot.

What if I experience severe side effects?

Seek immediate medical attention if you experience severe side effects or allergic reactions.

Will insurance cover Naltrexone?

Most insurance plans do cover Naltrexone; check with your provider for details.

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