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NALOXONE vs REZENOPY

Independent side-by-side comparison.

Rated against independent regulatory sources·Last updated August 22, 2026·How we rate

Rating

72/100
New

Pharmacy pays

$4.41 /mL
$4.41 /mL

Type

RX
RX

Active ingredient

NALOXONE HYDROCHLORIDE
NALOXONE HYDROCHLORIDE

Manufacturer

Dosage forms

Injectable
Spray/Inhaler

Drug class

Opioid Antagonist
Opioid Antagonist

Boxed warning

None
None

Half-life

30 to 81 minutes (mean 64 ± 12 minutes)
30 to 81 minutes (mean 64 ± 12 minutes)

Treats

Opioid-Related Disorders, Respiration Disorders, Septic Shock
Opioid-Related Disorders, Respiration Disorders, Septic Shock

Frequently asked questions

Which is cheaper, Naloxone or Rezenopy?

Pharmacies pay about the same to acquire either one — roughly $4.41 per ml, per the CMS NADAC survey. That is not what you will be charged: your price is set by your insurer and the pharmacy, not by what the drug cost them.

What is the difference between Naloxone and Rezenopy?

Both Naloxone and Rezenopy share the active ingredient Naloxone Hydrochloride.

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.