OPVEE vs VIVITROL

Independent side-by-side comparison.

Rated against independent regulatory sources·Last updated August 19, 2026·How we rate

Possible drug interaction. OPVEE 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	OPVEE	VIVITROL
Rating	New	70/100
Pharmacy pays	—	~$36.35 /30
Type	RX	RX
Active ingredient	NALMEFENE HYDROCHLORIDE	NALTREXONE
Manufacturer	Indivior	Alkermes Inc
Dosage forms	Spray/Inhaler	Kit
Drug class	Opioid Antagonist	Opioid Antagonist
Boxed warning	None	None
Treats	Opioid-Related Disorders, Respiration Disorders, Drug Overdose	Alcoholism, Opioid-Related Disorders, Drug Overdose

opvee vivitrol

Rating

New

70/100

Pharmacy pays

—

~$36.35 /30

Type

Active ingredient

NALMEFENE HYDROCHLORIDE

NALTREXONE

Manufacturer

Indivior

Alkermes Inc

Dosage forms

Spray/Inhaler

Kit

Drug class

Opioid Antagonist

Boxed warning

None

Treats

Opioid-Related Disorders, Respiration Disorders, Drug Overdose

Alcoholism, Opioid-Related Disorders, Drug Overdose

Frequently asked questions

What is the difference between Opvee and Vivitrol?

Opvee contains Nalmefene 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.