LIBERVANT vs ONFI

Independent side-by-side comparison.

Rated against independent regulatory sources·Last updated August 11, 2026·How we rate

Possible drug interaction. LIBERVANT and ONFI 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	LIBERVANT	ONFI
Rating	New	New
Pharmacy pays	~$0.87 /30	~$7.72 /30
Type	RX	RX
Active ingredient	DIAZEPAM	CLOBAZAM
Manufacturer	Aquestive	Lundbeck Pharms LLC
Dosage forms	Film	Suspension, Tablet
Drug class	Benzodiazepine	Benzodiazepine
Boxed warning	None	Boxed warning
Half-life	about 48 hours (up to 48 hours), but it varies strongly with age — roughly 20 hours at age 20 and rising by about 1 hour for each year of age	—
Treats	Alcohol Withdrawal Delirium, Muscle Spasticity, Status Epilepticus	Seizures, Lennox Gastaut Syndrome

libervant onfi

Rating

New

Pharmacy pays

~$0.87 /30

~$7.72 /30

Type

Active ingredient

DIAZEPAM

CLOBAZAM

Manufacturer

Aquestive

Lundbeck Pharms LLC

Dosage forms

Film

Suspension, Tablet

Drug class

Benzodiazepine

Boxed warning

None

Boxed warning

Half-life

about 48 hours (up to 48 hours), but it varies strongly with age — roughly 20 hours at age 20 and rising by about 1 hour for each year of age

—

Treats

Alcohol Withdrawal Delirium, Muscle Spasticity, Status Epilepticus

Seizures, Lennox Gastaut Syndrome

Frequently asked questions

Which is cheaper, Libervant or Onfi?

Libervant costs pharmacies less to acquire — about $0.87 vs $7.72 for a 30-count supply, per the CMS NADAC survey. That gap is in the pharmacy's cost of goods, not necessarily in what you pay: your price is set afterwards by your insurer and the pharmacy.

What is the difference between Libervant and Onfi?

Libervant contains Diazepam, while Onfi contains Clobazam — 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.