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KLONOPIN vs LIBERVANT

Independent side-by-side comparison.

Rated against independent regulatory sources·Last updated June 7, 2026·How we rate

Possible drug interaction. KLONOPIN and LIBERVANT 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.

Rating

New
New

Pharmacy pays

~$0.83 /30
~$0.87 /30

Type

RX
RX

Active ingredient

CLONAZEPAM
DIAZEPAM

Dosage forms

Tablet
Film

Drug class

Benzodiazepine
Benzodiazepine

Boxed warning

Half-life

about 30 to 40 hours
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

Bipolar Disorder, Dysarthria, Myoclonic Epilepsies
Alcohol Withdrawal Delirium, Muscle Spasticity, Status Epilepticus

Frequently asked questions

Which is cheaper, Klonopin or Libervant?

Klonopin costs pharmacies less to acquire — about $0.83 vs $0.87 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 Klonopin and Libervant?

Klonopin contains Clonazepam, while Libervant contains Diazepam — 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.