SUBVENITE vs TRILEPTAL

Independent side-by-side comparison.

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

Possible drug interaction. SUBVENITE and TRILEPTAL 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	SUBVENITE	TRILEPTAL
Rating	New	70/100
Pharmacy pays	~$4.39 /30	~$5.03 /30
Type	RX	RX
Active ingredient	LAMOTRIGINE	OXCARBAZEPINE
Manufacturer	Owp Pharms	Novartis
Dosage forms	Suspension, Tablet, Kit	Suspension, Tablet
Drug class	Anti-Epileptic Agent	Anti-Epileptic Agent
Boxed warning	Boxed warning	None
Half-life	about 25 to 33 hours in healthy adults taking no other medications — the label reports a mean elimination half-life of 32.8 hours after a single dose (individual range 14 to 103 hours) and 25.4 hours with repeat dosing (range 11.6 to 61.6 hours), since lamotrigine induces its own metabolism	about 2 hours (immediate-release tablets and oral suspension)
Treats	Bipolar Disorder, Partial Epilepsies, Seizures	Partial Epilepsies

subvenite trileptal

Rating

New

70/100

Pharmacy pays

~$4.39 /30

~$5.03 /30

Type

Active ingredient

LAMOTRIGINE

OXCARBAZEPINE

Manufacturer

Owp Pharms

Novartis

Dosage forms

Suspension, Tablet, Kit

Suspension, Tablet

Drug class

Anti-Epileptic Agent

Boxed warning

None

Half-life

about 25 to 33 hours in healthy adults taking no other medications — the label reports a mean elimination half-life of 32.8 hours after a single dose (individual range 14 to 103 hours) and 25.4 hours with repeat dosing (range 11.6 to 61.6 hours), since lamotrigine induces its own metabolism

about 2 hours (immediate-release tablets and oral suspension)

Treats

Bipolar Disorder, Partial Epilepsies, Seizures

Partial Epilepsies

Frequently asked questions

Which is cheaper, Subvenite or Trileptal?

Subvenite costs pharmacies less to acquire — about $4.39 vs $5.03 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 Subvenite and Trileptal?

Subvenite contains Lamotrigine, while Trileptal contains Oxcarbazepine — 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.