NALOXONE vs VAPO-ISO

Independent side-by-side comparison.

Rated against independent regulatory sources·Last updated August 23, 2026·How we rate

Possible drug interaction. NALOXONE and VAPO-ISO 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	VAPO-ISO
Rating	72/100	New
Pharmacy pays	$4.41 /mL	—
Type	RX	RX
Active ingredient	NALOXONE HYDROCHLORIDE	ISOPROTERENOL HYDROCHLORIDE
Manufacturer	Hikma	Fisons
Dosage forms	Injectable	Solution
Drug class	Opioid Antagonist	Beta-Adrenergic Agonist
Boxed warning	None	None
Half-life	30 to 81 minutes (mean 64 ± 12 minutes)	—
Treats	Opioid-Related Disorders, Respiration Disorders, Septic Shock	Adams-Stokes Syndrome, Bradycardia, Low Cardiac Output

naloxone vapo-iso

Rating

72/100

New

Pharmacy pays

$4.41 /mL

—

Type

Active ingredient

NALOXONE HYDROCHLORIDE

ISOPROTERENOL HYDROCHLORIDE

Manufacturer

Hikma

Fisons

Dosage forms

Injectable

Solution

Drug class

Opioid Antagonist

Beta-Adrenergic Agonist

Boxed warning

None

Half-life

30 to 81 minutes (mean 64 ± 12 minutes)

—

Treats

Opioid-Related Disorders, Respiration Disorders, Septic Shock

Adams-Stokes Syndrome, Bradycardia, Low Cardiac Output

Frequently asked questions

What is the difference between Naloxone and Vapo-Iso?

Naloxone contains Naloxone Hydrochloride, while Vapo-Iso contains Isoproterenol Hydrochloride — 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.