What is NALTREXONE HYDROCHLORIDE used for?

NALTREXONE HYDROCHLORIDE (brand name Naltrexone Hydrochloride) is a Substance Use Agent indicated for See full prescribing information.

How does NALTREXONE HYDROCHLORIDE work?

NALTREXONE HYDROCHLORIDE works through the following mechanism: Other agent.

What are the most common side effects of NALTREXONE HYDROCHLORIDE?

Reported side effects vary by individual. The side-effects section on this page lists the events most frequently reported to FDA FAERS for NALTREXONE HYDROCHLORIDE. FAERS is voluntary reporting, so it reflects what was reported, not absolute incidence.

Is NALTREXONE HYDROCHLORIDE the same as Naltrexone Hydrochloride?

Naltrexone Hydrochloride is a brand name for NALTREXONE HYDROCHLORIDE. They share the same active ingredient and FDA-approved indications. Biosimilars and authorised generics may differ in inactive ingredients such as buffers or preservatives.

NALTREXONE HYDROCHLORIDE

Substance Use Agent

Brand names: Naltrexone Hydrochloride, Vivitrol, ReVia

Pregnancy: Category COral

Mechanism of Action

Other agent

Indications

See full prescribing information

Contraindications

• CONTRAINDICATIONS Naltrexone hydrochloride is contraindicated in Patients receiving opioid analgesics. Patients currently dependent on opioids
• including those currently maintained on opiate agonists (e.g.
• methadone ) or partial agonists (e.g.

FDA Warnings

WARNINGS Vulnerability to Opioid Overdose After opioid detoxification, patients are likely to have reduced tolerance to opioids
Cases of opioid overdose with fatal outcomes have been reported in patients after discontinuing treatment
It is important that patients inform family members, and the people closest to the patient of this increased sensitivity to opioids and the risk of overdose
This poses a potential risk to individuals who attempt, on their own, to overcome the blockade by administering large amounts of exogenous opioids

Known Side Effects

10 documented side effects by frequency

Injection Site Reaction

>10%

Nausea

>10%

Injection Site Pain

1-10%

Headache

1-10%

Fatigue

1-10%

Dizziness

1-10%

Drug Not Working

1-10%

Vomiting

0.1-1%

Insomnia

0.1-1%

General Unwellness

0.1-1%

Community Discussions

1 Reddit threads analysed for NALTREXONE HYDROCHLORIDE

Overall Sentiment

Positive

Comparison Threads

Avg Post Score

1,137 upvotes

Most discussed side effects in community

Dizziness (1)

Rash (1)

Anxiety (1)

Drowsiness (1)

Stomach Pain (1)

Vision Changes (1)

Patient Experiences (r/pharmacy, r/AskDocs & more)

I'd only been overseas on business for two weeks. When I got back, someone was in my home, painted to look like our cat,…

*“Hey! Get the* ***fuck*** *off my son!”* I barked, storming towards our couch, suitcase falling from my grasp somewhere along the way. Juli planted a firm hand on my chest as I tried to pass her, asking what *my* problem was. She insisted that I must be exhausted from the flight, that I wasn’t thin

r/nosleep1,137417mo ago

Dizziness

Rash

Anxiety

Community discussions are sourced from public Reddit threads. Content reflects individual opinions and is not medical advice.

Primary sources

Every figure on this page links back to its primary source. See data sources for full provenance.

DailyMed FDA label search → NALTREXONE HYDROCHLORIDE openFDA label JSON → NALTREXONE HYDROCHLORIDE FAERS adverse-event reports → NALTREXONE HYDROCHLORIDE ClinicalTrials.gov → completed Phase 2+ trials of NALTREXONE HYDROCHLORIDE

Compare With

10 available comparisons

Formulations

Dosage Forms

Tablet

Route

Oral