ISUPREL vs TWINJECT

Independent side-by-side comparison.

Rated against independent regulatory sources·Last updated October 9, 2026·How we rate

Possible drug interaction. ISUPREL and TWINJECT 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	ISUPREL	TWINJECT
Rating	New	72/100
Pharmacy pays	—	~$3895.90 /30
Type	RX	RX
Active ingredient	ISOPROTERENOL HYDROCHLORIDE	EPINEPHRINE
Manufacturer	Bausch	Impax
Dosage forms	Tablet, Solution, Injectable, Spray/Inhaler, metered	Injectable
Drug class	Beta-Adrenergic Agonist	Catecholamine
Boxed warning	None	None
Treats	Adams-Stokes Syndrome, Bradycardia, Low Cardiac Output	Airway Obstruction, Anaphylaxis, Bradycardia

isuprel twinject

Rating

New

72/100

Pharmacy pays

—

~$3895.90 /30

Type

Active ingredient

ISOPROTERENOL HYDROCHLORIDE

EPINEPHRINE

Manufacturer

Bausch

Impax

Dosage forms

Tablet, Solution, Injectable, Spray/Inhaler, metered

Injectable

Drug class

Beta-Adrenergic Agonist

Catecholamine

Boxed warning

None

Treats

Adams-Stokes Syndrome, Bradycardia, Low Cardiac Output

Airway Obstruction, Anaphylaxis, Bradycardia

Frequently asked questions

What is the difference between Isuprel and Twinject?

Isuprel contains Isoproterenol Hydrochloride, while Twinject contains Epinephrine — 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.