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Gabapentin Coupon - Gabapentin 300mg capsule

gabapentin

Generic Neurontin
Used for Epilepsy, Postherpetic Neuralgia
Used for Epilepsy, Postherpetic Neuralgia

Gabapentin (Neurontin) is a medication approved to treat certain seizures and nerve pain. It's typically taken 3 times daily by mouth, and is available as pills and a liquid. Common side effects include dizziness and sleepiness.

Reviewed by:
reviewer
Robert Chad Hakim, PharmD, BCCCP
reviewer
Kristianne Hannemann, PharmD
Last reviewed on January 27, 2023
BasicsSide effectsPros & consPharmacist tipsFAQsWarningsDosageInteractionsCostAlternativesLatest newsImagesReferencesPricesMedicare
basics-icon

What is Gabapentin (Neurontin)?

What is Gabapentin (Neurontin) used for?

How Gabapentin (Neurontin) works

Gabapentin (Neurontin) is an antiepileptic that's also used to help with nerve pain. It has a similar structure to gamma-aminobutyric acid (GABA), a chemical in the brain that calms nerves. It's not completely known how gabapentin (Neurontin) works to treat seizures or nerve pain, but it's thought to work by lowering the activation of nerves involved with causing nerve pain and seizures.

Are you looking for information on Gralise (gabapentin) or Horizant (gabapentin enacarbil extended-release) instead?
When does Gabapentin (Neurontin) start working?
Time passed since treatment started:
HOURS
DAYS
WEEKS
MONTHS
Initial effect
Full effect

Drug Facts

Common BrandsNeurontin
Drug ClassAntiepileptic
Controlled Substance ClassificationControlled in some states. See FAQs below.
Generic StatusLower-cost generic available
AvailabilityPrescription only
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$62.49(save 88.48%)
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$7.20
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What are the side effects of Gabapentin (Neurontin)?

The following side effects may get better over time as your body gets used to the medication. Let your healthcare provider know immediately if you continue to experience these symptoms or if they worsen over time.

Common Side Effects

  • Dizziness (17-28%)
  • Sleepiness (19-21%)
  • Poor muscle control/clumsiness (3-13%)
  • Fatigue (3-11%)

Other Side Effects

  • Swelling in arms and legs
  • Diarrhea
  • Nausea
  • Vomiting
  • Lack of energy
  • Dry mouth
  • Weight gain
  • Tremor
  • Uncontrollable eye movements
  • Double vision
  • Emotional changes (children)

Serious Side Effects

Contact your healthcare provider immediately if you experience any of the following.
  • Serious allergic and skin reactions: hives, rash, blisters, fever, swelling of the lips or tongue, difficulty breathing, skin reddening
  • Suicidal thoughts or behaviors
  • Breathing problems
When do Gabapentin (Neurontin) possible side effects begin and end?
Time passed since treatment started:
HOURS
DAYS
WEEKS
MONTHS
Dizziness
Sleepiness
Poor muscle control

Source: DailyMed

The following side effects have also been reported

Along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.

Check with your doctor immediately if any of the following side effects occur:

More common

Clumsiness or unsteadiness

continuous, uncontrolled, back-and-forth, or rolling eye movements

More common in children

Aggressive behavior or other behavior problems

anxiety

concentration problems and change in school performance

crying

depression

false sense of well-being

hyperactivity or increase in body movements

rapidly changing moods

reacting too quickly, too emotional, or overreacting

restlessness

suspiciousness or distrust

Less common

Black, tarry stools

chest pain

chills

cough

depression, irritability, or other mood or mental changes

fever

loss of memory

pain or swelling in the arms or legs

painful or difficult urination

sore throat

sores, ulcers, or white spots on the lips or in the mouth

swollen glands

unusual bleeding or bruising

unusual tiredness or weakness

Incidence not known

Abdominal or stomach pain

blistering, peeling, or loosening of the skin

clay-colored stools

coma

confusion

convulsions

dark urine

decreased urine output

diarrhea

difficult or troubled breathing

dizziness

fast or irregular heartbeat

headache

increased thirst

irregular, fast or slow, or shallow breathing

itching or skin rash

joint pain

large, hive-like swelling on the face, eyelids, lips, tongue, throat, hands, legs, feet, or sex organs

loss of appetite

muscle ache or pain

nausea

pale or blue lips, fingernails, or skin

red skin lesions, often with a purple center

red, irritated eyes

unpleasant breath odor

vomiting of blood

yellow eyes or skin

Some side effects may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:

More common

Blurred vision

cold or flu-like symptoms

delusions

dementia

hoarseness

lack or loss of strength

lower back or side pain

swelling of the hands, feet, or lower legs

trembling or shaking

Less common or rare

Accidental injury

appetite increased

back pain

bloated or full feeling

body aches or pain

burning, dry, or itching eyes

change in vision

change in walking and balance

clumsiness or unsteadiness

congestion

constipation

cough producing mucus

decrease in sexual desire or ability

dryness of the mouth or throat

earache

excess air or gas in the stomach or intestines

excessive tearing

eye discharge

feeling faint, dizzy, or lightheadedness

feeling of warmth or heat

flushed, dry skin

flushing or redness of the skin, especially on the face and neck

frequent urination

fruit-like breath odor

impaired vision

incoordination

increased hunger

increased sensitivity to pain

increased sensitivity to touch

increased thirst

indigestion

noise in the ears

pain, redness, rash, swelling, or bleeding where the skin is rubbed off

passing gas

redness or swelling in the ear

redness, pain, swelling of the eye, eyelid, or inner lining of the eyelid

runny nose

sneezing

sweating

tender, swollen glands in the neck

tightness in the chest

tingling in the hands and feet

trouble sleeping

trouble swallowing

trouble thinking

twitching

unexplained weight loss

voice changes

vomiting

weakness or loss of strength

weight gain

Other side effects not listed may also occur in some patients. If you notice any other effects, check with your healthcare professional.

Call your doctor for medical advice about side effects. You may report side effects to the FDA at 1-800-FDA-1088.

pros-and-cons

Pros and cons of Gabapentin (Neurontin)

thumbs-up

Pros

Works well for seizures and nerve pain

Available as a lower-cost generic

Available as a tablet, capsule, and liquid for those who have trouble swallowing pills

Dose can be adjusted based on response

thumbs-down

Cons

Needs to be taken multiple times per day

Stopping the medication suddenly can lead to serious problems, such as seizures

Can raise your risk of suicidal thoughts or behavior

Commonly causes dizziness

pharmacist-tips

Pharmacist tips for Gabapentin (Neurontin)

pharmacist

  • Gabapentin (Neurontin) can raise the risk of suicidal thoughts. Contact your provider right away if you or your loved ones notice any new or worsening changes in your behavior or mood while taking the medication.

    • Gabapentin (Neurontin) commonly causes sleepiness and dizziness. Don't drive or do anything requiring concentration until you know how this medication affects you.

      • Avoid drinking alcohol while taking gabapentin (Neurontin) because it can worsen side effects (e.g., drowsiness, dizziness).

        • Gabapentin (Neurontin) can interact with some commonly prescribed medications. Make sure to tell your provider and pharmacist about all of the medications you're taking before starting gabapentin (Neurontin). Some medications that interact with gabapentin (Neurontin) include benzodiazepines, anxiety medications, and opioid pain medications. These combinations with gabapentin (Neurontin) can raise your risk of side effects, such as sleepiness, dizziness, and dangerously slow breathing.

          • Medications containing aluminum or magnesium (e.g., multivitamins, Mylanta Maximum Strength) can lower the amount of gabapentin (Neurontin) that gets absorbed into your body, which can make the medication not work as well for you. Take gabapentin (Neurontin) at least 2 hours after taking a medication with aluminum or magnesium.

            • Don't change your dose or suddenly stop taking gabapentin (Neurontin) without talking to your provider first. Doing so can cause withdrawal symptoms like seizures, anxiety, and sleeping problems. Follow your provider's instructions to lower your dose slowly over a period of time to stop the medication completely.

              • You can take gabapentin (Neurontin) with or without food, but if it upsets your stomach, try taking it with food to help.

                • If you're taking the gabapentin (Neurontin) capsules, swallow the capsules whole with water. Don't crush, chew, or open the capsules.

                  • If you're taking the gabapentin (Neurontin) tablets, you can split the tablets where they're scored with a line in the middle of the tablet. Half-tablets not taken within 28 days of splitting in half should be thrown away.

                    • If you're taking gabapentin (Neurontin) liquid, make sure to use an oral syringe or medication dosing cup to measure out your dose. Don't use household spoons because they aren't accurate and might cause you to take the wrong dose.

                      • Store the liquid in the refrigerator in the original bottle it came in from the pharmacy.

                        faqs

                        Frequently asked questions about Gabapentin (Neurontin)

                        Is gabapentin (Neurontin) a controlled substance?
                        The federal government doesn't consider gabapentin (Neurontin) a controlled substance. However, gabapentin (Neurontin) has been shown to be potentually misused, such as causing a "high" when not used properly and when used at higher doses. Because of this risk, some states currently classify gabapentin (Neurontin) as a controlled substance (schedule V). Some other states don't classify gabapentin (Neurontin) as a controlled substance, but they do keep close track of gabapentin (Neurontin) dispensing using a prescription monitoring program. If you have questions about controlled substance laws in your state, it's best to talk to a local healthcare professional.
                        What's the difference between the available brands of gabapentin?
                        Neurontin is an immediate-release form of gabapentin that's approved for seizures and nerve pain and usuaully taken 3 times per day. It's available as a lower-cost generic tablet, capsule, and liquid. Gralise and Horizant are both extended-release brands of gabapentin that are taken once or twice per day and aren't available as lower-cost generics. Both Gralise and Horizant are used for nerve pain from shingles, but Horizant is also approved for restless legs syndrome. The three brands of gabapentin are not interchangeable, meaning their doses are not equal to each other and you can't substitute one product for another. Ask your provider or pharmacist if you aren't sure which brand of gabapentin you're taking to make sure you're using the medication safely and correctly so it can work as best as possible for your condition.
                        Does gabapentin (Neurontin) help with nerve pain from diabetes?
                        Gabapentin (Neurontin) is only FDA-approved to treat nerve pain from shingles and as an add-on treatment for seizures. But gabapentin (Neurontin) is sometimes prescribed off-label (not FDA-approved) for nerve pain from diabetes. In fact, guidelines published by the American Diabetes Association recommends gabapentin (Neurontin) as one of the first-choice options to ease nerve pain from diabetes. Ask your provider if you've questions about how well gabapentin (Neurontin) works to help with nerve pain.
                        How long does it take for gabapentin (Neurontin) to start working to treat nerve pain?
                        Gabapentin (Neurontin) starts to improve nerve pain within the first week, but it can take up to a month or longer to feel the full effects of the medication, especially because the dose is started low and then slowly raised over a long period of time. This is done to lower your risk for side effects, such as sleepiness and dizziness. Contact your provider if you feel gabapentin (Neurontin) isn't helping with your condition. Your dose might need to be raised or you might need to switch or add another medication.
                        Is gabapentin (Neurontin) safe to take while I'm pregnant?
                        There's limited research done about the safety of gabapentin (Neurontin) during pregnancy. One research study shows that gabapentin (Neurontin) doesn't seem to cause serious harm (except for a possible risk of heart problems) when taken by mothers during the first 3 months of pregnancy, nor does it seem to result in any major birth defects overall. But the research did show that babies born to mothers who took gabapentin (Neurontin) later on during pregnancy were at higher risk certain complications, such as premature birth or lower birth weight. If you're pregnant or thinking about becoming pregnant, talk with your provider about the benefits and risks of taking gabapentin (Neurontin) during pregnancy. If you choose to take gabapentin (Neurontin) while pregnant, you're recommended to enroll in the North American Antiepileptic Drug (NAAED) Pregnancy Registry to monitor the safety of gabapentin (Neurontin) during your pregnancy.
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                        What are the risks and warnings for Gabapentin (Neurontin)?

                        Gabapentin (Neurontin) can cause some serious health issues. This risk may be even higher for certain groups. If this worries you, talk to your doctor or pharmacist about other options.

                        risk-warning

                        Severe allergic and skin reactions

                        Severe allergic reactions to gabapentin (Neurontin) are possible, including life-threatening reactions like facial swelling and anaphylaxis (e.g., closing of the throat). Although rare, gabapentin (Neurontin) can also cause serious skin reactions, such as Drug Reaction with Eosinophilia and Systemic Symptoms (DRESS). If you notice changes in your skin (e.g., rash, blisters, swollen lymph nodes, skin reddening, skin peeling) or experience swelling in your face or trouble breathing, stop using gabapentin (Neurontin) and get medical attention right away.

                        risk-warning

                        Difficulty concentrating, extreme sleepiness, and dizziness

                        • Risk factors: Taking high doses of gabapentin (Neurontin) | Drinking alcohol | Taking other medications that can cause sleepiness

                          Gabapentin (Neurontin) can cause extreme dizziness and sleepiness, which can lower your ability to think, react, and focus. Your risk might be higher is you're taking other medications that can cause you to feel sleepy (e.g., benzodiazepines, muscle relaxants, sleep medications). But this side effect should get better after a few weeks. Make sure you know how this medication affects you before driving a car or doing activities that require your concentration. Talk to your healthcare provider right away if you feel too sleepy from taking gabapentin (Neurontin).

                          risk-warning

                          Withdrawal problems

                          Stopping gabapentin (Neurontin) suddenly can cause withdrawal symptoms, such as seizures, anxiety, nervousness, and irregular heart rhythms. Don't change your dose or stop taking gabapentin (Neurontin) without talking to your provider first. They'll help you lower your dose slowly over time before stopping completely.

                          risk-warning

                          Suicidal thoughts or behavior

                          • Risk factors: Taking other anti-seizure medications

                            Gabapentin (Neurontin) can cause you to have thoughts of suicide or harming yourself. Sometimes, this can happen as early as 1 week after you start taking gabapentin (Neurontin). If you or anyone around you notice that you have suicidal thoughts or unusual behavior (e.g., anxiety, panic attacks, difficulty sleeping, feeling angry or irritated, restlessness) while taking gabapentin (Neurontin), get medical help right away.

                            risk-warning

                            Dangerously slow breathing (respiratory depression)

                            • Risk factors: Taking medications that can cause slow breathing | Drinking alcohol | Medical conditions that cause breathing problems (e.g., COPD, asthma, brain tumors, head injury, high pressure in the brain)

                              Gabapentin (Neurontin) can cause dangerously slow breathing when taken with other medications that can slow your breathing (e.g., benzodiazepines, opioids, alcohol). If you or your loved one notice you have trouble breathing or have bluish-colored lips, fingers, or toes, call 911 to get medical help right away.

                              risk-warning

                              Brain and mental health side effects in children

                              • Risk factors: Children ages 3 to 12 years old

                                Children who use gabapentin (Neurontin) can experience certain brain or mental health side effects, such as unstable emotions, aggressive behavior, problems concentrating, restlessness, hyperactivity, and changes in school performance. When these side effects occur, they're usually mild to moderate in intensity. If you or anyone notices these behaviors in your child, contact your child's provider.

                                dosage

                                Gabapentin (Neurontin) dosage forms

                                The average cost for 60 capsules of 300mg of Gabapentin (Neurontin) is $7.20 with a free GoodRx coupon. This is 88.48% off the average retail price of $62.49.
                                capsule
                                Capsule
                                DosageQuantityPrice as low asPrice per unit
                                100mg90 capsules$8.10$0.09
                                300mg60 capsules$7.20$0.12
                                400mg90 capsules$13.32$0.15
                                ml of oral solution
                                Ml of oral solution
                                DosageQuantityPrice as low asPrice per unit
                                250mg/5ml60 ml$11.18$0.19
                                tablet
                                Tablet
                                DosageQuantityPrice as low asPrice per unit
                                300mg30 tablets$52.10$1.74
                                600mg90 tablets$17.10$0.19
                                800mg90 tablets$17.10$0.19

                                Typical dosing for Gabapentin (Neurontin)

                                The dose is the same for the tablets, capsules, and liquid.

                                Nerve pain from shingles

                                • Adults: The typical starting dose is 300 mg by mouth once daily on Day 1, then 300 mg twice daily on Day 2, and then 300 mg three times daily starting on Day 3 and onwards. Your provider might raise your dose depending on your response. The maximum dose is 600 mg three times daily.

                                Partial seizures

                                • Adults and children age 12 years and older: The typical starting dose is 300 mg by mouth three times daily. The typical maintenance dose ranges from 300 mg to 600 mg by mouth three times daily.

                                • Children age 3 to up to 12 years old: Your child's provider will determine your child's dose based on their age and weight. The typical starting dose ranges from 10 mg/kg to 15 mg/kg daily, divided into three smaller doses and taken by mouth throughout the day. The typical maintenance dose ranges from 25 mg/kg to 40 mg/kg daily, divided into three smaller doses and taken throughout the day.

                                Your dose might be different if you have side effects.

                                interactions

                                Interactions between Gabapentin (Neurontin) and other drugs

                                Gabapentin (Neurontin) may interact with certain medications or supplements. Always let your doctor and pharmacist know about any other medications or supplements (including prescribed and over-the-counter medications, vitamins, and dietary or herbal supplements) that you are currently taking. The list below does not include all possible drug interactions with Gabapentin (Neurontin). Please note that only the generic name of each medication is listed below.

                                Using this medicine with any of the following medicines is usually not recommended, but may be required in some cases. If both medicines are prescribed together, your doctor may change the dose or how often you use one or both of the medicines.

                                Using this medicine with any of the following medicines may cause an increased risk of certain side effects, but using both drugs may be the best treatment for you. If both medicines are prescribed together, your doctor may change the dose or how often you use one or both of the medicines.

                                • Aluminum Carbonate, Basic
                                • Aluminum Hydroxide
                                • Aluminum Phosphate
                                • Dihydroxyaluminum Aminoacetate
                                • Dihydroxyaluminum Sodium Carbonate
                                • Ginkgo
                                • Magaldrate
                                • Magnesium Carbonate
                                • Magnesium Hydroxide
                                • Magnesium Oxide
                                • Magnesium Trisilicate
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                                How much does Gabapentin (Neurontin) cost?

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                                alternatives

                                What are alternatives to Gabapentin (Neurontin)?

                                There are a number of medications that your doctor can prescribe in place of Gabapentin (Neurontin). Compare a few possible alternatives below.
                                Gabapentin (Neurontin)
                                Used for:
                                $7.20 Lowest GoodRx priceView Prices
                                Gralise (gabapentin)
                                Used for:
                                $17.10 Lowest GoodRx priceView Prices
                                Lidocaine 5% patch (Lidoderm)
                                Used for:
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                                Gabapentin is a remedy for nerve pain that’s also prescribed for back pain. See how it works and if it can help back pain from sciatica, shingles, and more.

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                                images

                                Gabapentin (Neurontin) images

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                                References

                                Best studies we found

                                ACI Healthcare USA, Inc. (2023). GABAPENTIN capsule [package insert]. DailyMed.

                                Akorn. (2022). GABAPENTIN solution [package insert]. DailyMed.

                                American Diabetes Association Professional Practice Committee. (2021). 12. Retinopathy, neuropathy, and foot care: Standards of Medical Care in Diabetes—2022. Diabetes Care.

                                View All References (7)

                                Chincholkar, M. (2020). Gabapentinoids: pharmacokinetics, pharmacodynamics and considerations for clinical practice. British Journal of Pain.

                                Jewett, B. E., et al. (2023). Physiology, GABA. StatPearls.

                                Parke-Davis Div of Pfizer Inc. (2022). NEURONTIN - gabapentin capsule NEURONTIN - gabapentin tablet, film coated NEURONTIN - gabapentin solution [package insert]. DailyMed.

                                Patel, P. R., et al. (2023). Partial epilepsy. StatPearls.

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