Impact-Site-Verification: 2721d812-1059-4270-b9fa-5c1654788cd1

Gabapentin Capsule — prescription drug image

Gabapentin

Gabapentin 300MG

Prescriptions & Refills
Licensed US providers · Online visit in minutes

What is Gabapentin?

Gabapentin is a medication used to help control certain types of seizures in people with epilepsy. It also relieves pain from postherpetic neuralgia, which is pain that can occur after shingles. Your doctor will determine the right dose for you.

Prescription savings · · · ·

What is Gabapentin ?

Gabapentin is a medication used to help control certain types of seizures in people with epilepsy. It also relieves pain from postherpetic neuralgia, which is pain that can occur after shingles. Your doctor will determine the right dose for you.

Source: MedlinePlus, U.S. National Library of Medicine

  • Unusual moods or behaviors, thoughts of hurting yourself, feeling depressed
  • Rash, swollen or tender glands in the neck, armpit, or groin
  • Blistering, peeling, red skin rash
  • Dark urine or pale stools, nausea, vomiting, loss of appetite, stomach pain, yellow skin or eyes
  • Rapid weight gain, swelling in your hands, ankles, or feet
  • Problems with coordination, shakiness, unsteadiness, unusual eye movement
  • Behavior problems, aggression, restlessness, trouble concentrating, moodiness (especially in children)
  • Change in how much or how often you urinate, bloody or cloudy urine
  • Allergic reaction: Itching or hives, swelling in your face or hands, swelling or tingling in your mouth or throat, chest tightness, trouble breathing
  • Blue lips, fingernails, or skin, chest pain, fast heartbeat, trouble breathing
  • Fever, chills, cough, sore throat, body aches
  • Tell your doctor if you are pregnant or breastfeeding, or if you have kidney problems (including patients receiving dialysis) or lung problems. Tell your doctor if you have a history of depression or mental health problems.
  • This medicine may cause the following problems:Drug reaction with eosinophilia and systemic symptoms (DRESS) or multiorgan hypersensitivity, which may damage the liver, kidney, blood, heart, or musclesChanges in mood or behavior, including suicidal thoughts or behaviorRespiratory depression (serious breathing problem that can be life-threatening), when used with narcotic pain medicines
  • Do not stop using this medicine suddenly. Your doctor will need to slowly decrease your dose before you stop it completely.
  • This medicine may make you dizzy or drowsy. Do not drive or do anything else that could be dangerous until you know how this medicine affects you.
  • Tell any doctor or dentist who treats you that you are using this medicine. This medicine may affect certain medical test results.
  • Your doctor will check your progress and the effects of this medicine at regular visits. Keep all appointments.
  • Keep all medicine out of the reach of children. Never share your medicine with anyone.
  • Keep all medicine out of the reach of children. Never share your medicine with anyone.
  • Rapid weight gain, swelling in your hands, ankles, or feet
  • Unusual moods or behaviors, thoughts of hurting yourself, feeling depressed
What is gabapentin used for?
Gabapentin is FDA-approved to treat postherpetic neuralgia, the nerve pain that can remain after a shingles infection, and to help control partial-onset seizures as add-on therapy in adults and children 3 years and older. Doctors also prescribe it for other conditions based on their clinical judgment. Your provider can explain why it was prescribed for you.
Is gabapentin a controlled substance or narcotic?
Gabapentin is not a narcotic and is not a federally scheduled controlled substance. However, there is some potential for misuse, particularly in people with a history of substance abuse, and a few states have added their own monitoring or scheduling rules. Always take it exactly as prescribed.
What are the most common side effects of gabapentin?
The most common side effects are dizziness, drowsiness, loss of coordination (ataxia), and swelling in the hands or feet (peripheral edema). Serious effects are less common but can include severe allergic or hypersensitivity reactions and dangerous breathing problems when gabapentin is combined with opioids or other sedating medicines. Contact your doctor about any side effect that worries you.
Can you stop taking gabapentin suddenly?
No. You should not stop gabapentin abruptly. Stopping suddenly can cause withdrawal symptoms and, in people who take it for seizures, can increase the risk of seizures. Your doctor will usually lower the dose gradually (a taper) if you need to stop.
How long does it take for gabapentin to work?
This varies from person to person and depends on the condition being treated and how your dose is adjusted. Gabapentin is often started low and increased over time, so it may take days to a few weeks to reach the full effect. Follow your prescriber's dosing schedule and check with them if you are not noticing improvement.
How much does Gabapentin cost without insurance?
The price of Gabapentin without insurance varies by pharmacy, dosage, and quantity. Rx.com compares cash prices at more than 60,000 US pharmacies so you can find the lowest price near you. Many people save up to 91% off retail prices with a free Rx.com coupon.
What are the common side effects of Gabapentin?
Common side effects of Gabapentin may include: Unusual moods or behaviors, thoughts of hurting yourself, feeling depressed, Rash, swollen or tender glands in the neck, armpit, or groin, Blistering, peeling, red skin rash, Dark urine or pale stools, nausea, vomiting, loss of appetite, stomach pain, yellow skin or eyes, Rapid weight gain, swelling in your hands, ankles, or feet. This is not a complete list — consult your pharmacist or doctor for full side effect information.
Is there a generic version of Gabapentin?
Generic versions may be available for Gabapentin. Generics contain the same active ingredients as brand-name drugs and are typically 80–90% cheaper. Search Gabapentin on Rx.com to compare generic and brand prices at pharmacies near you.
What is the cheapest pharmacy for Gabapentin?
The cheapest pharmacy for Gabapentin depends on your location and dosage. Rx.com compares prices at CVS, Walgreens, Walmart, Kroger, Costco, and thousands of independent pharmacies. Enter your ZIP code on Rx.com to find the lowest price for Gabapentin near you.

Gabapentin Coupons & Prices

Gabapentin 300MG

Prescriptions & Refills
Licensed US providers · Online visit in minutes
Gabapentin Capsule — prescription drug image
Prescription
Gabapentin 300mg (30)
your area ·
Prescription weight loss

Weight-loss medication, prescribed online

Licensed U.S. providers · No insurance needed · Shipped to your door

$146/mo vs. brand-name GLP-1 medications $1,300+/mo Save up to 88%
See if I qualify Free online visit · No commitment
Compounded GLP-1 medications are not FDA-approved and are prepared by state-licensed compounding pharmacies. They are not affiliated with, endorsed by, or equivalent to any brand-name medication or manufacturer. Prescription required; eligibility is determined by a licensed provider. Prices are estimates and may vary.

Looking for a gabapentin coupon? Gabapentin is the low-cost generic version of Neurontin, so most people never need a brand-name prescription to save. Even so, the cash price for the same tablets or capsules can vary widely from one pharmacy to the next, which is exactly why comparing matters. Rx.com checks prices across more than 60,000 pharmacies so you can find a lower price near you. Enter your ZIP above to see today's price and print or text yourself a free discount coupon.

What is gabapentin and how does it work?

Gabapentin is an anticonvulsant (antiepileptic) medication in the gabapentinoid class. It is a GABA analog that acts as an alpha-2-delta calcium channel ligand, which is thought to calm overactive nerve signaling. It is FDA-approved to treat postherpetic neuralgia (the nerve pain that can linger after shingles) and, as add-on therapy, to help control partial-onset seizures in adults and children 3 years and older.

Gabapentin is also widely prescribed by doctors for other conditions at their discretion. It is sold under brand names including Neurontin and the extended-release Gralise. Horizant (gabapentin enacarbil) is a related but distinct salt and is not interchangeable with standard gabapentin.

How much does gabapentin cost without insurance?

Gabapentin is available as a generic, and generics are generally much cheaper than brand-name drugs. That is good news for your wallet, but it does not mean every pharmacy charges the same. Cash prices for the identical gabapentin prescription can differ significantly between nearby pharmacies, so it pays to compare before you fill.

With a free Rx.com discount, you may pay less than the standard cash price even if you have no insurance, or a price that beats your copay if you do. We compare live prices across more than 60,000 pharmacies. Enter your ZIP above to see today's price for your strength and quantity, then show the coupon at the pharmacy counter.

Gabapentin vs. brand names and alternatives

Because generic gabapentin is already affordable, most people fill the generic rather than a brand. The brand-name equivalents include Neurontin and the extended-release Gralise; Horizant is a related gabapentin enacarbil product that your prescriber may choose for specific reasons.

Gabapentin is sometimes compared with pregabalin (brand Lyrica), another gabapentinoid in the same drug class. These are different medicines and are not automatically interchangeable, so only your provider can decide which one is right for you. If you have been prescribed a specific product, compare its price above before assuming the generic is your only low-cost option.

Gabapentin safety and side effects

The most common side effects of gabapentin are dizziness, drowsiness, loss of coordination (ataxia), and swelling in the hands or feet (peripheral edema). Like other antiepileptic drugs, it carries a warning for new or worsening suicidal thoughts and behavior. Combining gabapentin with opioids or other central nervous system depressants can cause serious, life-threatening breathing problems, especially in older adults or people with reduced lung function. Rare but serious reactions can include DRESS/multiorgan hypersensitivity and anaphylaxis or angioedema. The dose usually needs to be reduced if you have kidney problems, and there is some potential for misuse in people with a history of substance abuse.

Do not stop gabapentin suddenly. Stopping abruptly can trigger withdrawal and, in people who take it for seizures, an increased risk of seizures, so your doctor will taper the dose. This information is not medical advice. Talk with your doctor or pharmacist about your health history and any other medicines you take before starting or stopping gabapentin.

Sources & accuracy

This Gabapentin information was written and reviewed against authoritative U.S. medical sources — MedlinePlus (U.S. National Library of Medicine), DailyMed, and FDA prescribing information — and checked for accuracy. It is provided for education and is not a substitute for professional medical advice.

Verify the official label: Gabapentin on DailyMed (FDA)

Reviewed against FDA labeling · Last reviewed July 2026

¿Buscando esta página en español?

Browse more medications: starting with G · full A-Z directory · by condition · common drugs

Medical disclaimer: This information is provided for general educational purposes only and is not medical advice. It is not a substitute for professional diagnosis or treatment. Always consult a licensed physician, pharmacist, or other qualified healthcare provider before starting, stopping, or changing any medication or treatment. Never disregard professional medical advice or delay seeking it because of something you read here. If you think you may have a medical emergency, call your doctor or 911 immediately.


Don't Miss Out On Savings!

Rx.com does not warrant the accuracy of the information on this website. All information on this site is intended to supplement, not substitute for, the expertise and judgment of your physician, pharmacist or other healthcare professional. It should not be construed to indicate that use of a drug is safe, appropriate, or effective for you. Consult your healthcare professional before using any drug. All logos, brand names and trademarks on this website are the property of their respective owners. Rx.com is not endorsed or affiliated with any brands represented on this website."

Pharmacy discounts are Not Insurance, and are Not Intended as a Substitute for Insurance THE DISCOUNT IS ONLY AVAILABLE AT PARTICIPATING PHARMACIES As an Amazon Associate, we earn from qualifying purchases.

2026 All Rights Reserved | Rx.com®