NALOXONE HYDROCHLORIDE vs VIVITROL

Independent side-by-side comparison.

Rated against independent regulatory sources·Last updated August 16, 2026·How we rate

Possible drug interaction. NALOXONE HYDROCHLORIDE and VIVITROL are different prescription medicines. Combining or switching between them can cause interactions — talk to a pharmacist or prescriber before making changes. This page is not medical advice.

Attribute	NALOXONE HYDROCHLORIDE	VIVITROL
Rating	New	70/100
Pharmacy pays	$4.41 /mL	~$36.35 /30
Type	RX	RX
Active ingredient	NALOXONE HYDROCHLORIDE	NALTREXONE
Manufacturer	Igi Labs Inc	Alkermes Inc
Dosage forms	Injectable, Solution, Spray/Inhaler	Kit
Drug class	Opioid Antagonist	Opioid Antagonist
Boxed warning	None	None
Half-life	30 to 81 minutes (mean 64 ± 12 minutes)	—
Treats	Opioid-Related Disorders, Respiration Disorders, Septic Shock	Alcoholism, Opioid-Related Disorders, Drug Overdose

naloxone hydrochloride vivitrol

Rating

New

70/100

Pharmacy pays

$4.41 /mL

~$36.35 /30

Type

Active ingredient

NALOXONE HYDROCHLORIDE

NALTREXONE

Manufacturer

Igi Labs Inc

Alkermes Inc

Dosage forms

Injectable, Solution, Spray/Inhaler

Kit

Drug class

Opioid Antagonist

Boxed warning

None

Half-life

30 to 81 minutes (mean 64 ± 12 minutes)

—

Treats

Opioid-Related Disorders, Respiration Disorders, Septic Shock

Alcoholism, Opioid-Related Disorders, Drug Overdose

Frequently asked questions

What is the difference between Naloxone Hydrochloride and Vivitrol?

Naloxone Hydrochloride contains Naloxone Hydrochloride, while Vivitrol contains Naltrexone — they have different active ingredients.

Ratings are based on FDA regulatory (recall-safety) data. This comparison is for general reference only — not medical advice. Always consult a licensed professional before choosing or switching a medication.