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Gabapentin (Rx)

Gabapentin (Rx)

Best price now

$14.40at Chewy.comObserved at 3:45 PM

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Our take on the Gabapentin (Rx)

Gabapentin is a prescription oral medication for dogs, cats and horses, used mainly for neuropathic pain and for calming anxiety around vet visits, travel or fireworks. It comes as hard gelatin capsules in 100 mg, 300 mg and 400 mg strengths, with mannitol, pre-gelatinized starch and talc as inactive ingredients. It is not a controlled substance, so refills do not require a special DEA schedule. The best new price is $14.40 at Chewy.com as of November 4, 2026, and only one store lists it new, so there is no meaningful recent price range to compare against.

Best forDogs and cats with neuropathic painAnxious pets before vet visits or travelNoise-sensitive pets during storms or fireworksOwners who prefer capsules over liquid
Pros
  • Not a controlled substance, so no DEA schedule restrictions
  • Three capsule strengths allow dose fine-tuning
  • Widely used off-label in veterinary behavior and pain care
  • Capsules are easy to hide in food for most pets
Cons
  • Prescription required; not available over the counter
  • Sedation and loss of coordination are common side effects
  • Some cats become profoundly sedated for up to 24 hours
  • Dosing is weight-based and must be set by a vet
  • Only one store lists it new, limiting price comparison

Gabapentin (Rx) prices at every store

  • Chewy.comNew

    In stock

    $14.40+ $4.95 shippingObserved at 3:45 PM
    Visit store

Also available at

  • AmazonCheck price at Amazon
  • Petco.comCheck price at Petco.com

Gabapentin (Rx) price history

Lowest price we've seen: $7.69 on Nov 4 at Petco.com. Tracked across 3 stores since Nov 4.

What reviewers say

Owners and vets report gabapentin is generally well tolerated and useful for calming pets before vet visits and for chronic pain, but sedation varies widely between animals. Many describe a groggy, wobbly pet for several hours after a dose.

Pros
  • Noticeably calmer pets at the vet
  • Helps with nerve pain and limping
  • Easy to give in a capsule or mixed into food
  • Few serious side effects at typical doses
Cons
  • Heavy sedation in some cats lasting a day
  • Loss of coordination and wobbliness
  • Vomiting in some pets
  • Effects and best dose vary a lot between animals

About the Gabapentin (Rx)

Gabapentin is an effective treatment for dogs and cats to calm an anxious brain. It is used as a treatment for neuropathic pain which speaks to its properties of dampening the nervous system from overreacting. With any oral behavioral medication, no two animals react the same way and each medication regimen must be fine tuned to each individual patient. We have recommended a starting dose for your pet, but if they are too sedate on this dose, we may need to decrease it or increase it if it did not achieve the desired effect. Side effects are mainly associated with sedation and loss of coordination, though vomiting is also sometimes seen. Some cats experience profound sedation which may last for 24 hours. If you notice these signs, please contact us for further recommendations and dose adjustments.

Specifications

Animal
Cat, Dog, Horse
Dosage form
imprinted hard gelatin capsulesSource
Available strengths
100 mg, 300 mg and 400 mgSource
Active ingredient
gabapentin, USPSource
Molecular formula

Questions and answers

Is gabapentin worth it for my pet?
For many pets it is a low-cost, effective option for anxiety and nerve pain. Whether it helps yours depends on the dose and how your animal responds, so expect some trial and adjustment with your vet.
How is gabapentin different from trazodone?
Gabapentin targets nerve pain and also calms, while trazodone is mainly a sedating anti-anxiety drug. Vets sometimes combine them, but gabapentin is the more common choice for neuropathic pain.
What dose should I give my dog or cat?
Dosing is by weight and condition, and the right dose for a 10 lb cat is very different from a 60 lb dog. Follow your vet's prescription and call them if your pet seems too sedated or not sedated enough.
What are the common side effects?
Sedation and loss of coordination are the most common, and vomiting sometimes occurs. Some cats stay deeply sedated for up to 24 hours; contact your vet if that happens.
What's in the box?
You get the prescribed number of imprinted hard gelatin capsules in the strength your vet ordered. The inactive ingredients are mannitol, pre-gelatinized starch and talc.
When is gabapentin cheapest?
It is a low-cost generic, and the best new price was $14.40 at Chewy.com as of November 4, 2026. With only one store listing it new, compare that price against your vet's office and other pharmacies before ordering.
Where is the Gabapentin (Rx) cheapest?
At Chewy.com, for $14.40, as of our latest check.
Where can I buy the Gabapentin (Rx)?
3 stores we checked sell it, including Chewy.com, Amazon, Petco.com.

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C9H17NO2
Source
Molecular weight
171.24Source
pKa1
3.7Source
pKa2
10.7Source
Partition coefficient
–1.25Source
Inactive ingredients
mannitol, pre-gelatinized starch and talcSource