Grapiprant is the active ingredient in Galliprant, a prescription anti-inflammatory medication manufactured by Elanco and FDA-approved for the control of pain and inflammation associated with osteoarthritis (OA) in dogs. Unlike traditional NSAIDs such as carprofen or meloxicam that inhibit cyclooxygenase (COX) enzymes, grapiprant belongs to the piprant class and works by selectively blocking the EP4 prostaglandin receptor. This targeted downstream mechanism may offer a more favorable safety profile for the gastrointestinal tract, kidneys, and liver while still providing effective pain relief. Grapiprant is approved for dogs 9 months of age and older weighing at least 8 pounds.
What Is Grapiprant Used For?
Veterinarians prescribe grapiprant for the management of pain and inflammation caused by osteoarthritis in dogs. Common clinical scenarios include:
- Osteoarthritis pain in adult dogs of any size (8 lbs and above)
- Chronic joint pain requiring long-term daily management
- Dogs considered higher risk for GI, renal, or hepatic side effects from traditional COX-inhibiting NSAIDs
- Early-stage OA as part of a multimodal pain management plan
Grapiprant does not cure osteoarthritis. It controls clinical signs to improve comfort and mobility. Your veterinarian may recommend combining grapiprant with weight management, physical rehabilitation, and joint supplements for comprehensive care.
Dosage
The FDA-approved dose of grapiprant is 2 mg/kg (0.9 mg/lb) once daily. Your veterinarian will determine the correct dose for your dog.
| Dog’s Weight | Tablet Strength | Dose |
|---|---|---|
| 8-15 lbs | 20 mg | 1 tablet once daily |
| 25-50 lbs | 60 mg | 1 tablet once daily |
| 50-100 lbs | 100 mg | 1 tablet once daily |
| Over 100 lbs | 100 mg | Vet-directed combination |
Grapiprant tablets are available in 20 mg, 60 mg, and 100 mg scored, flavored tablets. Administer once daily with or without food. Do not crush or break tablets unless directed by your veterinarian. If you miss a dose, give it as soon as you remember unless it is near the next scheduled dose.
Side Effects
| Common Side Effects | Serious Side Effects (Contact Your Vet) |
|---|---|
| Vomiting | Bloody or black/tarry stool |
| Soft stool or diarrhea | Persistent or severe vomiting |
| Decreased appetite | Jaundice (yellowing of gums or skin) |
| Mild lethargy | Increased thirst or urination |
| Unexplained weight loss or bleeding |
In clinical trials, vomiting and soft stool were the most commonly reported adverse events. Baseline blood work and periodic monitoring are recommended for all dogs on long-term grapiprant therapy. Consult your veterinarian if you notice any changes in your dog’s behavior or health.
Drug Interactions
- Other NSAIDs (carprofen, meloxicam, deracoxib, aspirin): Never combine NSAIDs. A washout period is required when switching; ask your veterinarian.
- Corticosteroids (prednisone, prednisolone, dexamethasone): Concurrent use significantly increases GI ulceration risk.
- Highly protein-bound drugs: Grapiprant is highly protein-bound and may interact with other protein-bound medications. Always disclose your dog’s full medication and supplement list to your veterinarian.
Contraindications
Grapiprant should not be used in:
- Dogs under 9 months of age or weighing less than 8 pounds
- Dogs with known hypersensitivity to grapiprant
- Cats (not approved for feline use)
- Breeding, pregnant, or lactating dogs (safety not established)
Use with caution in dogs with preexisting GI, kidney, or liver disease. Your veterinarian will assess your dog’s health before prescribing grapiprant.
Storage
- Store at controlled room temperature, 68-77 degrees F (20-25 degrees C).
- Brief excursions to 59-86 degrees F (15-30 degrees C) are permitted.
- Keep in original packaging, away from moisture.
- Keep out of reach of children and pets.
Frequently Asked Questions
How fast does grapiprant work? Many owners notice improved comfort and mobility within a few days to one week. If no improvement is seen after two weeks, consult your veterinarian about adjusting the treatment plan.
Is grapiprant the same as Galliprant? Yes. Grapiprant is the generic (active ingredient) name; Galliprant is the brand name manufactured by Elanco. There is currently no generic version available.
Can grapiprant be used with glucosamine or fish oil? Many veterinarians recommend grapiprant alongside joint supplements such as glucosamine/chondroitin (Dasuquin, Cosequin) and omega-3 fatty acids as part of a multimodal arthritis plan. Always inform your veterinarian of all supplements your dog receives.
Does grapiprant require blood work monitoring? Yes. Your veterinarian will typically recommend baseline blood work before starting therapy and periodic monitoring during long-term use to assess kidney, liver, and overall health.
This content is for informational purposes only and is not a substitute for professional veterinary advice. Always consult your veterinarian before starting, changing, or stopping any medication for your dog.