METHADONE HYDROCHLORIDE vs OPANA ER

Independent side-by-side comparison.

Rated against independent regulatory sources·Last updated August 18, 2026·How we rate

Possible drug interaction. METHADONE HYDROCHLORIDE and OPANA ER 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	METHADONE HYDROCHLORIDE	OPANA ER
Rating	72/100	New
Pharmacy pays	$0.18 /mL	~$36.74 /30
Type	RX	RX
Active ingredient	METHADONE HYDROCHLORIDE	OXYMORPHONE HYDROCHLORIDE
Manufacturer	Hikma	Endo Operations
Dosage forms	Injectable, Solution, Tablet	Tablet, extended release
Drug class	Opioid Agonist	Opioid Agonist
Boxed warning	Boxed warning	None
Half-life	about 8 to 59 hours (terminal/elimination half-life; a very wide range)	—
Treats	Opioid-Related Disorders, Intractable Pain	Pain

methadone hydrochloride opana er

Rating

72/100

New

Pharmacy pays

$0.18 /mL

~$36.74 /30

Type

Active ingredient

METHADONE HYDROCHLORIDE

OXYMORPHONE HYDROCHLORIDE

Manufacturer

Hikma

Endo Operations

Dosage forms

Injectable, Solution, Tablet

Tablet, extended release

Drug class

Opioid Agonist

Boxed warning

None

Half-life

about 8 to 59 hours (terminal/elimination half-life; a very wide range)

—

Treats

Opioid-Related Disorders, Intractable Pain

Pain

Frequently asked questions

What is the difference between Methadone Hydrochloride and Opana ER?

Methadone Hydrochloride contains Methadone Hydrochloride, while Opana ER contains Oxymorphone 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.