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Novox (Carprofen) Dose for Dogs: Strengths & Dose Calculator

Q: What is the Novox dose for dogs?

4.4 mg/kg once a day or 2.2 mg/kg twice a day.

Q: Is Novox the same as Rimadyl?

Both contain carprofen; Novox is Vedco’s carprofen caplet.

Reviewed by Dr. Ravi Baraiya, B.V.Sc.Updated 2 Nov 20262 sources

Novox is carprofen caplets for dogs (25, 75 and 100 mg) from Vedco ^[1]. The dose is 4.4 mg/kg (2 mg/lb) a day, once daily or split into 2.2 mg/kg twice a day, for osteoarthritis and post-operative pain ^[1].

Contains: Carprofen
Company: Vedco
Forms: Novox 25 mg caplet
Novox 75 mg caplet
Novox 100 mg caplet
Label species: Dogs
Data from: USA (FDA label)
Type: NSAID / pain relief

Novox dose calculator

Results are calculated in your browser from the doses and strengths on this page. Check the strength printed on your pack and the label in your country before giving any dose.

Novox strengths and presentations

Presentation	Contains	Strength check
Novox 25 mg caplet PO	Carprofen 25 mg per tablet^[1]	Confirmed
Novox 75 mg caplet PO	Carprofen 75 mg per tablet^[1]	Confirmed
Novox 100 mg caplet PO	Carprofen 100 mg per tablet^[1]	Confirmed

Novox dose by species

Species	Use	Dose	Route	How often	Basis
Dogs	Osteoarthritis and post-operative pain Label: 2 mg/lb (4.4 mg/kg) a day.	4.4 mg/kg^[1]	PO	Once daily, or 2.2 mg/kg twice daily	Label

Label directions

4.4 mg/kg (2 mg/lb) once a day, or 2.2 mg/kg (1 mg/lb) twice a day ^[1].

Warnings and precautions

For dogs only — do not use in cats ^[1].
Do not use in dogs with previous hypersensitivity to carprofen ^[1].
Owners should stop Novox and call the vet if signs of intolerance appear ^[1].

About carprofen (the active ingredient)

Non-steroidal anti-inflammatory drug (NSAID).

How it works

Its effect is believed to be linked to inhibition of cyclooxygenase: COX-1 makes prostaglandins needed for normal gastrointestinal and renal function, and COX-2 makes prostaglandins involved in inflammation ^[2].

Key safety points

Do not use in cats ^[2].
Not recommended for dogs with bleeding disorders; avoid using with other anti-inflammatory drugs ^[2].
Do not use in dogs with previous hypersensitivity to carprofen ^[2].

All about carprofen — doses by species and every brand →

Pack sizes

Bottles of 30, 60 or 180 caplets of each strength ^[1].

Frequently asked questions

What is the Novox dose for dogs?

4.4 mg/kg once a day or 2.2 mg/kg twice a day ^[1].

Is Novox the same as Rimadyl?

Both contain carprofen; Novox is Vedco’s carprofen caplet ^[1].

Other brands of carprofen

All veterinary products →

Novox is a trademark of its owner. This page is an independent clinical reference and is not affiliated with Vedco. Strengths, species and withdrawal periods can differ between countries — always follow the pack insert in your country.

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Medically reviewed by

Dr. Ravi Baraiya, B.V.Sc.

Veterinarian · Reviewed 2 Nov 2026

References

NOVOX (carprofen) caplets — labelDrugs.com Vet — US label text, Vedco · 2026 · Product label
Passage read from this source
Novox is scored, and contains 25 mg, 75 mg, or 100 mg of carprofen per caplet.
The recommended dosage for oral administration to dogs is 2 mg/lb (4.4 mg/kg) of body weight daily.
or divided and administered as 1 mg/lb (2.2 mg/kg) twice daily.
For use in dogs only. Do not use in cats.
RIMADYL (carprofen) chewable — labelDailyMed (US NLM) — FDA-approved label, Zoetis · 2026 · Product label
Passage read from this source
The recommended dosage for oral administration to dogs is 2 mg/lb of body weight daily.
divided and administered as 1 mg/lb twice daily.
is believed to be associated with the inhibition of cyclooxygenase activity.
Do not use in cats.

For veterinary professionals. Information supports — never replaces — clinical judgement; always check the current product label and local regulations.