Neurontin
Generic Gabapentin · capsule · Rx required · Nerve pain, seizures.
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About Neurontin
Neurontin is a brand of Gabapentin, a neuro medication supplied as capsule in a 300 mg strength. It is commonly used for nerve pain, seizures.
An FDA-approved generic (Gabapentin) is available and typically costs less than the brand, compare both cash prices in the results above before you fill.
Ways to save on Neurontin
Choosing the generic (Gabapentin) instead of the brand can lower your cost, on average about $90.80 per fill (93% off the brand price) in our catalog, though the exact price varies by pharmacy, location, quantity, and eligibility. Compare the live cash and discount prices above, and ask about a 90-day supply if you take it long-term.
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Clinical information
Typical dosing
Titrated from 300 mg/day up to 1800-3600 mg/day in divided doses (dose depends on indication and response). Dose MUST be reduced with impaired kidney function, gabapentin is cleared almost entirely by the kidneys: • CrCl ≥60 mL/min: standard dosing (up to 3600 mg/day in 3 divided doses). • CrCl 30-59 mL/min: reduce total daily dose by about 50% (e.g. 400-1400 mg/day in 2 divided doses). • CrCl 15-29 mL/min: reduce further, about 25% of standard (e.g. 200-700 mg/day, once daily). • CrCl <15 mL/min: 100-300 mg once daily. • Hemodialysis: use a reduced maintenance dose based on CrCl, PLUS a supplemental dose after each dialysis session (dialysis removes gabapentin). Always confirm the exact dose with your prescriber/pharmacist using your current renal function.
Monitoring
Kidney function (CrCl/eGFR) before starting and periodically, since dosing depends on it. Watch for signs of respiratory depression (excess sedation, slow/shallow breathing) especially when combined with opioids or benzodiazepines.
Side effects
Drowsiness, dizziness, peripheral edema, weight gain, fatigue, coordination problems. Serious: respiratory depression (see warning above), suicidal thoughts (small increased risk across anticonvulsants), severe allergic reaction (DRESS syndrome, rash, fever, swollen lymph nodes).
Interactions to know
Antacids reduce absorption, separate by 2 hours. Additive sedation and respiratory depression risk with opioids, benzodiazepines, alcohol, and other CNS depressants, this combination requires caution and, often, dose adjustment or closer monitoring per your prescriber.
Pregnancy & breastfeeding
Limited data, discuss with prescriber.
Clinical content reviewed by the BetterBuyRx clinical team, on 2026-07-07. Read the full wiki entry and sources →
Frequently asked questions
Is generic Gabapentin the same as Neurontin?
Yes. The FDA requires generics to contain the same active ingredient at the same strength as the brand. Inactive ingredients (binders, dyes) may differ.
How much can I save by choosing the generic?
On average $90.80 per fill (93% off the brand price). Savings vary by pharmacy, see live prices above.
Do I need insurance to get this price?
No. The prices shown on BetterBuyRx are cash prices. Often these beat insurance copays for generics.
How often is this price updated?
At minimum every 72 hours. Many sources refresh every few hours.
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Important safety information
Boxed warning
FDA Drug Safety Communication (December 2019): serious breathing difficulty (respiratory depression), including deaths, has occurred when gabapentin or pregabalin is combined with opioids, benzodiazepines, or other CNS depressants, and in patients with existing respiratory risk factors (e.g. COPD, older age). Gabapentinoids are not FDA-classified with a formal boxed warning in the label the way black-box drugs are, but the FDA safety communication is being surfaced here with equal visibility because of the seriousness of the risk. Tell your prescriber about every opioid, benzodiazepine, sleep aid, or muscle relaxant you take.
Antiepileptic drug safety warning
Antiepileptic drugs (AEDs), including this medication, increase the risk of suicidal thoughts or behavior in patients taking them for any indication, not just epilepsy. Anyone starting or already taking an AED should be monitored for new or worsening depression, suicidal thoughts or behavior, or any unusual changes in mood. Contact your prescriber right away, or call or text 988 (Suicide & Crisis Lifeline), if these occur. Do not stop an AED abruptly without medical guidance, sudden discontinuation can trigger withdrawal seizures.
Information for general comparison only. Not medical advice. Confirm with your pharmacist.