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Get Lamotrigine ER for as low as $16.20, which is 96% off the average retail price of $382.74 for the most common version, by using a GoodRx coupon.

| Dosage | Quantity | Retail price | GoodRx price |
|---|
| 25mg | 30 tablets | $148.04 | $23.74 |
| 50mg | 30 tablets | $335.40 | $32.50 |
| 100mg | 30 tablets | $353.09 | $30.46 |
| 200mg | 30 tablets | $181.28 | $31.17 |
| 250mg | 30 tablets | $501.02 | $53.14 |
| 300mg | 30 tablets | $400.10 | $47.15 |

GoodRx coupon prices last updated on 03/17/26.
Sales tax may apply and is not included.