LEVO-DROMORAN vs ONSOLIS

Independent side-by-side comparison.

Rated against independent regulatory sources·Last updated August 21, 2026·How we rate

Possible drug interaction. LEVO-DROMORAN and ONSOLIS 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	LEVO-DROMORAN	ONSOLIS
Rating	70/100	New
Pharmacy pays	~$319.37 /30	$9.51 /mL
Type	RX	RX
Active ingredient	LEVORPHANOL TARTRATE	FENTANYL CITRATE
Manufacturer	Valeant Pharm Intl	Adalvo
Dosage forms	Injectable, Tablet	Film
Drug class	Opioid Agonist	Opioid Agonist
Boxed warning	None	None
Treats	Pain	Pain

levo-dromoran onsolis

Rating

70/100

New

Pharmacy pays

~$319.37 /30

$9.51 /mL

Type

Active ingredient

LEVORPHANOL TARTRATE

FENTANYL CITRATE

Manufacturer

Valeant Pharm Intl

Adalvo

Dosage forms

Injectable, Tablet

Film

Drug class

Opioid Agonist

Boxed warning

None

Treats

Pain

Frequently asked questions

What is the difference between Levo-Dromoran and Onsolis?

Levo-Dromoran contains Levorphanol Tartrate, while Onsolis contains Fentanyl Citrate — 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.