300mg · 90-count · Pain · Brand: Neurontin · Generic available
| Pharmacy | Cash Price | Per-30-Day Equiv. |
|---|---|---|
| Costco Cheapest | $7.50 | $2.50 |
| Walmart | $9.00 | $3.00 |
| Kroger | $10.00 | $3.33 |
| Target | $10.25 | $3.42 |
| Rite Aid | $21.50 | $7.17 |
| CVS | $22.99 | $7.66 |
| Walgreens | $24.00 | $8.00 |
Gabapentin is prescribed to manage pain and inflammation. It is sold under the brand name Neurontin and is available as the generic Gabapentin. A standard supply is 90 300mg.
Pharmacy pricing is not regulated in the United States, so retailers set their own cash prices. Large retailers like Walmart and Costco typically offer lower prices on generics because they use prescriptions as a traffic driver. Chain pharmacies like CVS and Walgreens tend to charge significantly more.
Pain medications range from affordable generics like ibuprofen to more expensive nerve pain options. Always check whether a generic is available.
Gabapentin belongs to a class of medications called anticonvulsants (nerve pain / gabapentinoids). It's very commonly prescribed off-label for nerve pain conditions rather than for seizures — one of the most frequently prescribed medications in the U.S. for that reason. Because it's used for such a wide range of conditions and doses, the count and strength prescribed to you may look very different from someone else's gabapentin prescription.
Shop around. The cheapest pharmacy (Costco at $7.50) charges significantly less than the most expensive option ($24.00). A quick call can save you real money.
Ask for the generic. If your doctor prescribed the brand-name Neurontin, ask your pharmacist whether the generic Gabapentin is available. In most states, pharmacists can substitute a generic unless the prescriber writes 'dispense as written.'
Use a discount card. Services like GoodRx, SingleCare, and WellRx can sometimes negotiate prices lower than retail cash. The estimated GoodRx low for Gabapentin is around $6.40.
Gabapentin has been an inexpensive generic for many years, with no manufacturer copay card attached — the cash prices above already reflect standard low-cost generic pricing, including for the larger 90-count supply shown here.
Coverage depends on your specific plan and formulary. Most pain medications are covered under standard health insurance, typically in Tier 1 or Tier 2. If your copay is higher than the cash price above, it may be cheaper to pay out of pocket — ask your pharmacist to compare. Prior authorization is uncommon for gabapentin given how long it's been generic, though some states have added it to controlled-substance monitoring programs at the state level even though it isn't federally scheduled — this can occasionally affect refill timing depending on where you live.
Prices represent estimated retail cash prices for Gabapentin 300mg (90-count) as of 2026. Actual prices may vary. RxCostCheck does not collect or sell your health data. Learn more →
How much does Gabapentin cost without insurance?
Without insurance, Gabapentin 300mg (90-count) ranges from $7.50 at Costco to $24.00. With a GoodRx discount card, the price can be as low as $6.40.
Where is the cheapest place to fill Gabapentin?
Costco typically offers the lowest cash price at $7.50 for 90 300mg.
Is there a generic for Gabapentin?
Yes — the generic Gabapentin is available and bioequivalent to Neurontin. Ask your pharmacist to dispense the generic to save money.
What if my insurance doesn't cover Gabapentin at all?
Ask your prescriber whether a covered therapeutic alternative in the same drug class exists, or ask your pharmacist about a formulary exception or medical-necessity appeal — some plans will cover an otherwise-excluded drug once that documentation is on file. In the meantime, the cash and discount-card pricing shown above is usually the fastest fallback.
Does a 90-day supply of Gabapentin cost less than three 30-day fills?
Often, yes — many pharmacies and insurance plans price a 90-day fill at a lower effective per-dose cost than separate 30-day fills, and some mail-order pharmacy benefits are built specifically around 90-day supplies. Ask your pharmacist or insurer whether a 90-day option is available for this medication before assuming the count shown above is your only choice.
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