Product Information
LAMOTRIGINE ER 100 MG TABLET is a generic product labeled by Torrent Pharmaceuticals Limited, priced at $0.6729 per EA under NDC 13668034130. Its NADAC has been published 439 times since May 9, 2018.
FDA first approved this application on Dec 23, 2013. Its Orange Book therapeutic-equivalence code is AB — FDA rates it therapeutically equivalent to (substitutable for) its reference product.
Strength
100 mg/1
Manufacturer
Torrent Pharmaceuticals LimitedNDC
13668034130
Classification
Generic
Dosage Form
TABLET, EXTENDED RELEASE
Route
ORAL
Effective Date
9/23/2026
Active Ingredients
LAMOTRIGINEApproval Type
Generic (ANDA)
FDA Application
ANDA203370FDA Approved
12/23/2013
TE Code
AB
On Market Since
12/23/2013
Pharmacological Classes
Price Statistics
The NADAC for LAMOTRIGINE ER 100 MG TABLET has been published 439 times since May 9, 2018, and over the history we have for it it has declined 81.9%. The table below summarizes its recorded NADAC range and movement.
| Current price | $0.6729 per EA |
|---|---|
| All-time high | $3.7171 (May 16, 2018) |
| All-time low | $0.5418 (Nov 20, 2024) |
| 52-week high | $0.7890 |
| 52-week low | $0.6087 |
| Median price | $1.2735 |
| Average price | $1.5369 |
| Largest weekly change | +51.0% (Oct 18, 2023) |
| Weeks tracked | 439 |
| Tracking since | May 9, 2018 |
Generic Alternatives
The matcher finds 17 manufacturers offering a NADAC-published product with this drug's active ingredient and strength in a comparable dosage form (cheapest from each manufacturer, up to 10 shown below). Switching to the cheapest would cut per-unit acquisition cost by roughly 93% at current NADAC. These are candidates to verify clinically, not guaranteed substitutes — see our generic drug prices guide.
Related Drugs
Same classification
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Manufacturer
Torrent Pharmaceuticals Limited manufacturer profile
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Drug market
Lamotrigine market comparison
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Therapeutic class
Anti-epileptic Agent class view
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Trend hub
Latest market trends
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Guide
Understanding NADAC pricing
Use the explainer when you need context on how CMS publishes NADAC and how to interpret the number on this page.
Frequently asked questions
What is the NADAC price of LAMOTRIGINE ER 100 MG TABLET?
The current National Average Drug Acquisition Cost (NADAC) for LAMOTRIGINE ER 100 MG TABLET, manufactured by Torrent Pharmaceuticals Limited, is $0.6729 per EA (NDC 13668034130), effective Sep 30, 2026.
How has the price of LAMOTRIGINE ER 100 MG TABLET changed over time?
Over the history we have for it, the NADAC for LAMOTRIGINE ER 100 MG TABLET has declined 81.9%. It has been tracked across 439 weekly CMS publications since May 9, 2018.
What are the highest and lowest recorded NADAC prices for LAMOTRIGINE ER 100 MG TABLET?
Since May 9, 2018, the NADAC for LAMOTRIGINE ER 100 MG TABLET has ranged from a low of $0.5418 (Nov 20, 2024) to a high of $3.7171 (May 16, 2018), with a median of $1.2735 per EA.
Are there cheaper alternatives to LAMOTRIGINE ER 100 MG TABLET?
Yes. 17 manufacturers publish a NADAC-priced product with the same active ingredient and strength in a comparable dosage form. The lowest-priced option, LAMOTRIGINE 100 MG TABLET, is $0.0487 per EA — about 93% below LAMOTRIGINE ER 100 MG TABLET.
Who manufactures LAMOTRIGINE ER 100 MG TABLET?
LAMOTRIGINE ER 100 MG TABLET (NDC 13668034130) is labeled by Torrent Pharmaceuticals Limited, and CMS classifies it as a generic product.