Buy Gabapentin (Neurontin) — Online Prescription
Gabapentin is the generic name behind brand-name Neurontin — one of the most-prescribed medications in the country, for nerve pain and seizures, and widely used off-label for anxiety and sleep. Here's what it actually is, the controlled-substance question people keep asking, real dosing, and why stopping it suddenly is genuinely dangerous.
Medically reviewed Medically reviewed by Sabrina Griswold, Pharm.D. — NPI 1821451063 · Last updated 2026-09-06
| Active ingredient | Gabapentin |
|---|---|
| Dosage form | Capsule, tablet, extended-release tablet, oral solution |
| Administration route | Oral |
Indications: 1 INDICATIONS AND USAGE Gabapentin Capsules, USP are indicated for: Management of postherpetic neuralgia in adults Adjunctive therapy in the treatment of partial onset seizures, with and without secondary generalization, in adults and pediatric patients 3 years and older with epilepsy Gabapentin Capsules, USP are indicated for Postherpetic neuralgia in adults (1) Adjunctive therapy in the treatment of partial onset seizures, with and without secondary generalization, in adults and pediatric pati…
Contraindications: 4 CONTRAINDICATIONS Gabapentin is contraindicated in patients who have demonstrated hypersensitivity to the drug or its ingredients. Known hypersensitivity to gabapentin or its ingredients (4)
openFDA label data — Updated 2026-09-06Gabapentin is the generic name for the medication sold under the brand Neurontin — a prescription-only anticonvulsant (gabapentinoid) FDA-approved for postherpetic neuralgia (shingles nerve pain) and as an add-on seizure treatment, and widely prescribed off-label for other nerve pain, restless legs, and anxiety. It is not a federally controlled substance or an opioid, though eight states schedule it at the state level due to misuse concerns. Never stop taking it suddenly — abrupt discontinuation carries a real seizure risk, even in people without epilepsy.
What gabapentin is, and how it works
Gabapentin was originally developed as a chemical analog of the neurotransmitter GABA (gamma-aminobutyric acid) — which is where the name comes from — but despite that, it doesn't actually act on GABA receptors. Its real mechanism is different: gabapentin binds to the alpha-2-delta subunit of voltage-gated calcium channels on nerve cells, which reduces the release of several excitatory neurotransmitters. In practical terms, that dampens the abnormal, overactive nerve signaling behind both seizures and certain types of chronic nerve pain, without directly sedating the brain the way a benzodiazepine or opioid does.
It's one of the most-prescribed medications in the country — the 5th most-prescribed drug in the US in 2024 (up from 10th in 2017), with prescription volume more than doubling over the past decade — a reflection of how broadly it's used for both its approved indications and off-label conditions.
- Postherpetic neuralgia — the nerve pain that can persist for months after a shingles rash heals, one of gabapentin's two FDA-approved uses.
- Partial-onset seizures — used as adjunctive (add-on) therapy alongside other antiseizure medications, in adults and children 3 and older, gabapentin's other FDA-approved use.
- Extended-release relatives — Gralise is a once-daily, extended-release brand of gabapentin itself, approved for postherpetic neuralgia. Horizant is a related but chemically distinct product — its active ingredient is gabapentin enacarbil, a prodrug that converts to gabapentin in the body — approved for restless legs syndrome and postherpetic neuralgia. Neither is dosed the same as, or directly interchangeable with, standard gabapentin capsules.
Gabapentin vs. Neurontin: same drug, different names
This is one of the most common points of confusion searched about this medication, and the actual answer is simple: gabapentin is the generic name, Neurontin is the original brand name, and they are the same active ingredient at the same dose — the same relationship as acetaminophen and Tylenol, or ibuprofen and Advil.
Neurontin
- What it is
- The original brand-name product, first FDA-approved in 1993
- Availability today
- Rarely stocked — most pharmacies fill the generic by default unless brand is specifically required
- Cost
- Significantly higher cash price than generic (see pricing below)
Gabapentin
- What it is
- The active ingredient itself — chemically and therapeutically identical to Neurontin
- Availability today
- The standard fill for the vast majority of prescriptions
- Cost
- A fraction of brand pricing, especially with a discount card
The one real nuance worth knowing: Gralise and Horizant are not the same thing as generic gabapentin capsules, even though Gralise contains the identical active ingredient and Horizant converts to it in the body. Both are extended-release formulations approved for specific uses and dosed once (or twice) daily rather than the typical three-times-daily schedule for standard gabapentin or Neurontin — a pharmacist cannot simply substitute one for the other, and your dose would not translate directly between them. If your prescription specifically says Gralise or Horizant, that's an intentional choice by your prescriber, not a synonym for "gabapentin."
Is gabapentin a controlled substance?
This is the single most-searched question about gabapentin, and the honest answer has two layers — federal and state — that most pages online blur together.
Under the federal Controlled Substances Act, the DEA has not classified gabapentin as a controlled substance. That means, federally, it's treated as a standard prescription drug — it doesn't require the DEA-specific prescribing restrictions (like limited refills or triplicate prescription pads) that apply to Schedule II–V substances such as opioids or benzodiazepines.
That federal picture doesn't mean the drug is risk-free. Real-world reports of gabapentin misuse — particularly among people who also use opioids, where it can intensify sedation and euphoric effects — led a number of states to act independently:
- Eight states classify gabapentin as a state-level Schedule V controlled substance: Alabama, Kentucky, Montana, North Dakota, Tennessee, Utah, Virginia, and West Virginia. In these states, gabapentin prescriptions may carry refill limits and reporting requirements similar to other Schedule V drugs.
- Many other states monitor it without scheduling it. Connecticut, for example, does not classify gabapentin as a controlled substance, but has required pharmacies to report gabapentin dispensing (supplies over 48 hours) to the state's prescription monitoring program since 2020 — a "drug of concern" designation, one step short of full scheduling.
- State rules can change. Montana added gabapentin to its controlled-substance list in late 2025; Michigan removed it from its list in 2024. If a specific refill or quantity limit matters to you, ask your Arrow Pharmacy pharmacist about the current rule where you live.
Worth knowing for context: pregabalin (Lyrica) — gabapentin's close chemical relative — is federally scheduled as Schedule V nationwide, unlike gabapentin. See the comparison further down this page for why that distinction exists despite the two drugs working almost identically.
Dosing and forms
Gabapentin dosing is always individualized and typically starts low, increasing gradually (titrated) to reduce dizziness and drowsiness — never adjust your own dose without your prescriber's specific schedule.
| Form | Common strengths | Typical use pattern |
|---|---|---|
| Immediate-release capsule | 100mg, 300mg, 400mg | 3x daily, titrated up from a low starting dose |
| Immediate-release tablet | 600mg, 800mg | 3x daily, for higher maintenance doses |
| Oral solution | 250mg/5mL | Weight-based or for patients who can't swallow capsules |
| Gralise (extended-release gabapentin) | 300mg–600mg tablets | Once daily, with food, evening dosing — postherpetic neuralgia only |
| Horizant (gabapentin enacarbil, a prodrug) | 300mg, 600mg tablets | Once or twice daily depending on indication — RLS or postherpetic neuralgia |
A representative titration schedule for postherpetic neuralgia, per the FDA label: 300mg on day 1, 600mg (300mg twice daily) on day 2, 900mg (300mg three times daily) on day 3 — then further increased as needed, up to a typical maximum of 1,800mg/day, occasionally higher under close supervision. Seizure dosing follows a similar gradual pattern, generally starting at 300mg three times daily in adults.
Gabapentin is cleared from the body almost entirely by the kidneys, unchanged — it isn't processed by the liver the way many medications are. That means people with reduced kidney function need a lower dose and/or less frequent dosing, and dialysis patients require specific supplemental dosing after each session. Always make sure your prescriber and pharmacist know your current kidney function before starting or refilling gabapentin, especially if you're older or have chronic kidney disease.
What gabapentin treats — FDA-approved vs. off-label
Postherpetic neuralgia (shingles nerve pain) in adults, and adjunctive therapy for partial-onset seizures in adults and children 3+. These are the two indications actually studied and approved by the FDA for gabapentin specifically.
Other neuropathic pain (diabetic neuropathy, fibromyalgia), restless legs syndrome, hot flashes associated with menopause, alcohol withdrawal (as a secondary option), and anxiety. Prescribers use gabapentin for these based on clinical judgment and supporting studies of varying strength — it's not an FDA-reviewed use, which is a meaningful difference worth understanding, not a reason to distrust the prescription.
The anxiety and sleep uses are worth a specific note, since they drive a large share of searches about this drug: evidence for gabapentin in generalized anxiety disorder specifically is thin, though there's more support for situational anxiety (like before a medical procedure) and for improving sleep quality — depth and fewer nighttime awakenings — rather than helping people fall asleep faster. If you were prescribed gabapentin for anxiety or sleep, that's a legitimate, common off-label practice, but it's reasonable to ask your prescriber what evidence they're weighing for your specific situation.
Side effects and the FDA breathing-problem warning
The most frequently reported side effects, drawn from clinical trial data across gabapentin's studied populations:
- Drowsiness (somnolence) — roughly 20% of patients, most pronounced early in treatment or after a dose increase.
- Dizziness — roughly 17%.
- Ataxia (unsteady coordination) — up to 13% in some studies, particularly at higher doses.
- Peripheral edema (swelling, usually in the feet/ankles) — up to 8%.
- Weight gain — roughly 2–3%, generally modest.
- Dry mouth, blurred vision, and mild memory or concentration effects — reported less commonly, but real for some patients, especially at higher doses.
In December 2019, the FDA added new warnings after reviewing reports of serious, and in some cases fatal, respiratory depression in patients taking gabapentin or pregabalin — almost always in combination with opioids or other central-nervous-system depressants (benzodiazepines, sedating antihistamines, sleep medications, alcohol), or in patients with an existing lung condition like COPD, or in older adults. If you're taking gabapentin alongside any opioid pain medication (hydrocodone, oxycodone, tramadol) or a sedative, tell your prescriber and pharmacist so the combination can be reviewed for safety — this is exactly the interaction category behind most of the "can I take gabapentin with [X]" searches people run for this drug.
Gabapentin vs. pregabalin (Lyrica)
Both drugs are gabapentinoids that act on the same alpha-2-delta calcium channel target, and are used for overlapping conditions — but they aren't the same molecule, and a few real differences matter.
Gabapentin (Neurontin)
- Federal schedule
- Not controlled federally (8 states schedule it individually)
- Absorption
- Non-linear — a smaller percentage of the dose absorbs as the dose gets higher
- Dosing frequency
- Usually 3x daily (immediate-release)
- FDA-approved for
- Postherpetic neuralgia, adjunctive seizure therapy
Pregabalin (Lyrica)
- Federal schedule
- Schedule V controlled substance, nationwide
- Absorption
- Linear and more predictable regardless of dose, faster onset
- Dosing frequency
- Usually 2x daily
- FDA-approved for
- Diabetic neuropathy, postherpetic neuralgia, fibromyalgia, spinal cord injury pain, adjunctive seizure therapy
Clinically, head-to-head research has generally found the two drugs comparably effective for nerve pain, so the choice between them often comes down to your insurance formulary, your state's rules around controlled substances, dosing convenience, and how you individually tolerate one versus the other — not one being objectively "stronger."
Stopping gabapentin safely
This is one of the most important safety points on this page, and one competitors' drug pages often bury or skip. Stopping gabapentin suddenly — especially after taking it regularly for more than a few weeks — can cause withdrawal symptoms (anxiety, insomnia, sweating, nausea) and, more seriously, can trigger seizures, including in people who have never had a seizure disorder. The FDA-approved label specifically recommends tapering the dose gradually over at least a week, with a slower taper for people on higher doses. If you're taking gabapentin for seizures, an abrupt stop can also cause your underlying seizures to rebound or worsen.
If you want to stop taking gabapentin for any reason — side effects, it's no longer needed, cost — call your prescriber or Arrow Pharmacy first to work out a taper schedule rather than stopping on your own. This applies even if you're only on a low dose.
Buying gabapentin: prescription, pricing, and generics
Gabapentin is prescription-only in the United States in every form. There's no legitimate over-the-counter version, in a pharmacy or online, despite that being a commonly searched question. If a website offers to sell it without a prescription, treat that as a red flag for a rogue or unlicensed online pharmacy — see our guide on evaluating online pharmacies for how to check legitimacy before ordering any medication online.
- Generic is the default, and it's inexpensive. Brand-name Neurontin is rarely stocked today — the generic is chemically identical and, at the wholesale level, costs pennies per capsule (see the price table above). Ask your Arrow Pharmacy pharmacist for a current cash-price quote, discount card, or manufacturer coupon before assuming your insurance copay is the cheapest way to save — for many people, it isn't.
- A prescription doesn't require a specialist. Primary care, pain management, neurology, and telehealth providers can all prescribe gabapentin when appropriate for your condition.
- Know your state's refill rules. If you're in one of the eight states that schedule gabapentin (see above), ask us about any refill or quantity limits that may apply to your prescription before you run out.
- We can fill or transfer a prescription quickly. Call us at (860) 522-9289 once your prescriber sends a new gabapentin prescription, or to transfer an existing one.
If cost or access is a concern even at generic pricing, ask us about patient assistance and discount programs — see our patient assistance programs page for options that apply broadly, not just to this drug.
No active shortage reported — No shortage records found for this generic name.
FDA openFDA — Updated 2026-09-06National Average Drug Acquisition Cost (NADAC): $0.034 per tablet (GABAPENTIN 300 MG CAPSULE). This is the average price pharmacies pay wholesalers — not your out-of-pocket cost — published by CMS for pricing transparency.
CMS NADAC — Updated 2026-09-06Gabapentin (Neurontin) Prices in the USA
| Dosage | Brand-name avg. price | Generic avg. price |
|---|---|---|
| 100 mg capsule (30-day supply, 3x daily) | $250–350 (Neurontin, rarely stocked) | $15–35 |
| 300 mg capsule (30-day supply, 3x daily — most common dose) | $320–420 (Neurontin, rarely stocked) | $20–45 |
| 400 mg capsule (30-day supply, 3x daily) | $350–450 (Neurontin, rarely stocked) | $25–50 |
| 600 mg / 800 mg tablet (30-day supply, higher-dose regimens) | $450–550 (Neurontin, rarely stocked) | $30–65 |
| Oral solution, 250mg/5mL (per bottle) | $200–300 (rarely stocked) | $40–80 |
Frequently asked questions
What is gabapentin used for?
The FDA has approved gabapentin for two things: managing postherpetic neuralgia (the nerve pain that can linger after a shingles outbreak) in adults, and as an add-on (adjunctive) therapy for partial-onset seizures in adults and children 3 and older with epilepsy. It's also prescribed off-label — meaning outside those specific FDA approvals, but based on a prescriber's clinical judgment — for other types of nerve pain, restless legs syndrome, hot flashes, and sometimes anxiety or sleep, with varying levels of supporting evidence for each.
Is gabapentin a controlled substance?
Not federally. The DEA has not scheduled gabapentin under the Controlled Substances Act, so under federal law it's a standard prescription drug, not a narcotic or scheduled controlled substance. That said, eight states — Alabama, Kentucky, Montana, North Dakota, Tennessee, Utah, Virginia, and West Virginia — have independently classified it as a state-level Schedule V controlled substance because of documented misuse, particularly alongside opioids. Many more states, including Connecticut, don't schedule it but do require pharmacies to report gabapentin fills to their prescription monitoring program. Check your specific state if this matters for refill rules where you live.
Is gabapentin the same as Neurontin?
Yes — gabapentin is the active ingredient, and Neurontin is simply the original brand name for it, the same relationship as ibuprofen and Advil. They are the same drug at the same dose. Two important exceptions: Gralise is an extended-release brand of gabapentin itself, and Horizant contains gabapentin enacarbil, a related prodrug that converts to gabapentin in the body but is a chemically distinct product. Neither is interchangeable, tablet-for-tablet, with standard immediate-release gabapentin or Neurontin.
Does gabapentin cause weight gain?
It can, though it's not among the most common side effects — clinical trial data puts weight gain at roughly 2–3% of patients, generally modest and more likely at higher, sustained doses. It's far less consistently linked to weight gain than some other medications used for nerve pain or mood. If you notice ongoing weight change, mention it to your prescriber rather than stopping the medication on your own.
Does gabapentin make you sleepy, and how long does that last?
Yes — drowsiness (somnolence) is one of gabapentin's most common side effects, reported in roughly 20% of patients in clinical trials, alongside dizziness (around 17%) and unsteadiness (ataxia). These effects are usually strongest in the first 1–2 weeks after starting or increasing a dose and often ease as your body adjusts, which is why prescribers typically start low and titrate the dose up gradually. Avoid driving or operating machinery until you know how a given dose affects you, and avoid alcohol and other sedating medications, which can compound the drowsiness.
Is gabapentin addictive, and is it a narcotic or opioid?
Gabapentin is not an opioid and not a narcotic — it works on a completely different mechanism (calcium channels in nerve tissue, not opioid receptors). It has traditionally been considered to have low abuse potential on its own. However, real-world data has shown a meaningful pattern of gabapentin misuse, especially among people who also use opioids, where it can amplify sedative and euphoric effects — which is exactly why the FDA added its 2019 breathing-problem warning and why several states now monitor or schedule it. Physical dependence can develop with regular use, which is a separate issue from addiction and is the reason it should never be stopped abruptly.
How long does it take for gabapentin to start working?
For seizure control, gabapentin needs to reach a stable level in your system, which typically takes several days of consistent dosing during the initial titration period your prescriber sets. For nerve pain, many patients notice some relief within the first 1–2 weeks as the dose is increased, though full benefit at a therapeutic dose can take longer. Gabapentin is not a fast-acting, as-needed medication the way a painkiller like ibuprofen is — it works cumulatively, which is also why consistent daily dosing (not skipping doses) matters for it to work as intended.
Is gabapentin the same as pregabalin (Lyrica)?
They're closely related — both are gabapentinoids that work on the same alpha-2-delta calcium channel target and are used for overlapping conditions like nerve pain — but they are different molecules, not the same drug. Pregabalin absorbs faster and more predictably (its bioavailability stays high regardless of dose), while gabapentin's absorption actually declines at higher doses, making its dosing less linear. One real regulatory difference: pregabalin is a federally controlled Schedule V substance nationwide, while gabapentin is not scheduled federally at all. See the comparison section below for the full breakdown.
Can I drink alcohol while taking gabapentin?
It's not recommended. Both gabapentin and alcohol depress the central nervous system, and combining them can intensify drowsiness, dizziness, and impaired coordination well beyond what either causes alone. This combination is part of the same risk category the FDA flagged in its 2019 warning about serious breathing problems — the danger is highest when CNS depressants are stacked together (alcohol, opioids, benzodiazepines, sleep aids), especially in older adults or anyone with a lung condition.
Can I just stop taking gabapentin if I don't need it anymore?
No — this is one of the more important safety points about this drug. Stopping gabapentin abruptly, especially after taking it regularly for more than a few weeks, can trigger withdrawal symptoms and, in some people, rebound or new-onset seizures, even if you've never had epilepsy. The FDA label recommends gradually tapering the dose over at least a week, and often longer for higher doses, under your prescriber's guidance. Never stop or reduce your dose on your own — call us or your prescriber first to work out a taper.
Can I buy gabapentin over the counter or without a prescription?
No. Gabapentin is prescription-only in the United States in every form — there is no legitimate over-the-counter version, despite that being a common search. A website offering to sell it with "no prescription needed" is a red flag for an unlicensed or rogue online pharmacy, not a legitimate shortcut — see the "Buying gabapentin" section on this page for how to check a pharmacy's legitimacy before ordering any medication online.
Is the gabapentin my vet prescribed for my dog or cat the same drug as human gabapentin?
It's the same active ingredient, but veterinary dosing, formulation, and monitoring are different from human prescribing — some human gabapentin products also contain xylitol-free formulations that matter for pets, and dosing is weight-based and species-specific. Never give a pet human gabapentin (or the reverse) without your veterinarian's specific direction; this page covers gabapentin as it's prescribed for people, not veterinary dosing.
Sources
- Gabapentin (Neurontin) — FDA-approved prescribing information (label) — U.S. Food and Drug Administration
- NADAC (National Average Drug Acquisition Cost) — GABAPENTIN 300 MG CAPSULE — CMS
- openFDA Drug Shortages — U.S. FDA
- FDA Drug Safety Communication: Serious breathing problems with gabapentin (Neurontin) and pregabalin (Lyrica) — U.S. Food and Drug Administration
- Gabapentin — Drug Fact Sheet — U.S. DEA Diversion Control Division
- Gabapentin and Naloxone Added to Connecticut Prescription Monitoring and Reporting System — Connecticut Department of Consumer Protection
- Gabapentin price data (average retail cash price) — GoodRx (consumer price reference)
- Gabapentin — Drug Usage Statistics — ClinCalc DrugStats Database (MEPS-derived prescription data)