Before you give it: is gabapentin the right fit?
Gabapentin suits a specific set of problems. A quick check first:
- It is for anxiety, nerve pain, or seizures — set by a vet. Gabapentin is used for situational anxiety (such as vet-visit stress), chronic or neuropathic pain, and sometimes alongside other drugs for seizures — your veterinarian decides which applies.
- Expect some drowsiness. Mild sedation and a little wobbliness (ataxia) are the common, expected effects; they usually ease as your pet adjusts or the dose is adjusted.
- Never substitute a human liquid. Many human gabapentin oral solutions contain xylitol, which is toxic to dogs. Use only the capsule/tablet your vet prescribes or a vet-compounded form — never a human liquid unless your vet confirms it is xylitol-free.
- Do not stop a seizure course abruptly. If gabapentin is being used for seizures, it is tapered rather than stopped suddenly; follow your vet’s plan.
What gabapentin for dogs and cats is
Gabapentin is a prescription medication used in dogs and cats as an anticonvulsant and for chronic, nerve-related pain,1 and widely for situational anxiety such as the stress of veterinary visits.2 It is not an antibiotic and does nothing for infection. Whether it is the right choice, and at what dose, is a decision for the prescribing veterinarian — based on your pet’s weight, species, other medications, and health history.
We are a licensed veterinary pharmacy. We dispense what the vet prescribes3 — we do not diagnose or set doses — and we will tell you plainly when gabapentin is not the right fit for your pet.
| Active ingredient | Gabapentin |
|---|---|
| Strength | 100, 300, and 600 mg |
| Also sold as | Neurontin (brand and form vary) |
| Drug class | Anticonvulsant / analgesic (gabapentinoid) |
| Form | Capsules and tablets |
| Intended use | Dogs and cats only |
| Availability | Prescription, not for human use |
| Delivery to | All 50 US states, contact us for other countries |
Gabapentin dosing for dogs and cats: your vet sets it
Gabapentin for dogs and cats is dosed by body weight, species, and what is being treated, and set by your prescribing veterinarian. Anxiety, pain, and seizure use are dosed differently, which is one reason a vet — not a website — sets it. We do not set doses, and this page does not list one. The label on your order reflects your prescribing vet’s instructions — follow it exactly, and if gabapentin is being used for seizures, never stop it abruptly. Gabapentin comes in 100, 300, and 600 mg.
Side effects to watch for
The most common effects are drowsiness and mild wobbliness (ataxia), which usually ease as your pet adjusts or the dose is adjusted. Some pets have mild stomach upset. Call your vet if your pet is very sedated, unsteady enough to risk a fall, or unusually unwell. Remember that many human gabapentin liquids contain xylitol, which is toxic to dogs — use only what your vet prescribes.
⚠ Important safety notes
- Prescription medication. A veterinarian decides whether it’s appropriate and sets the dose — we never set one.
- Expect drowsiness. Sedation and mild unsteadiness are common; keep your pet somewhere they can’t fall or hurt themselves while they adjust.
- Never use a human liquid with xylitol. Many human gabapentin oral solutions contain xylitol, which is toxic to dogs. Use only the prescribed capsule/tablet or a vet-confirmed xylitol-free form.
- Don’t stop a seizure course suddenly. If it’s prescribed for seizures, it is tapered; follow the vet’s plan. For dogs and cats only; never give a pet a medication meant for a person or another animal.
Cost & how to get it
There is no public cart or online payment step. You place a reservation, a veterinarian reviews it and writes the prescription if it’s appropriate, then our pharmacy sends a secure payment link before anything ships — so the veterinary review costs you nothing separate, and you pay only for the medication. If gabapentin isn’t right for your pet, the order isn’t filled and you aren’t charged.
| Pack size | 100 mg | 300 mg | 600 mg |
|---|---|---|---|
| 100 capsules | $49.99 · $0.50/capsule | $59.99 · $0.60/capsule | $75.99 · $0.76/capsule |
| 200 capsules MOST POPULAR | $79.99 · $0.40/capsule | $95.99 · $0.48/capsule | $125.99 · $0.63/capsule |
| 500 capsules BEST VALUE | $139.99 · $0.28/capsule | $169.99 · $0.34/capsule | $219.99 · $0.44/capsule |
The per-capsule cost drops at the larger pack sizes — your vet sets the strength and how long your pet needs it.
Related guides
Frequently asked questions
Do I need a prescription?
Yes — but you don’t have to arrange it yourself. A veterinarian reviews your order and prescribes it, then we dispense it legally. If it’s not right for your pet, the order isn’t filled and you aren’t charged.
What is gabapentin used for in dogs and cats?
It is used for situational anxiety (often vet-visit stress), chronic nerve-related pain, and sometimes as an add-on for seizures. Whether it fits your pet is the prescribing vet’s decision.
What dose should I give?
We don’t provide dosing. The right dose depends on your pet’s weight, species, and what is being treated, and is set by the prescribing veterinarian. Follow the prescription exactly.
Is the human liquid form safe?
Not necessarily — many human gabapentin oral solutions contain xylitol, which is toxic to dogs. Use only the capsule or tablet your vet prescribes, or a vet-confirmed xylitol-free form.
Do I get exactly what I see on this site?
We can’t guarantee a specific manufacturer. What you receive may look different, but the drug, strength, and ingredients match what the veterinarian prescribes.
Medical disclaimer
This site is for informational purposes only and is not veterinary advice, diagnosis, or a treatment recommendation. A licensed veterinarian should determine medication selection, prescribing, dosing, and treatment for the individual animal. Never give a dog or cat a medication intended for a person or another animal; the wrong drug or dose can seriously harm your pet. All medications sold on this site are for animal use only and are not intended for human use or consumption.
Sources & References
- Merck Veterinary Manual, “Systemic Pharmacotherapeutics of the Nervous System.” merckvetmanual.com (accessed 2026) Supports: gabapentin is used in animals as an anticonvulsant and for chronic, nerve-related pain.
- van Haaften KA, Eichstadt Forsythe LR, Stelow EA, Bain MJ. “Effects of a single preappointment dose of gabapentin on signs of stress in cats during transportation and veterinary examination.” J Am Vet Med Assoc 2017;251(10):1175–1181. doi:10.2460/javma.251.10.1175. doi.org (2017) Supports: in a randomized, blinded crossover trial, a single oral gabapentin dose significantly reduced stress and increased compliance in cats during transport and veterinary examination.
- FDA Center for Veterinary Medicine. Animal & Veterinary. fda.gov (accessed 2026) Supports: the prescription status of veterinary medications.
