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

Q: What strengths does Rimadyl come in?

25 mg, 75 mg and 100 mg scored chewable tablets.

Reviewed by Dr. Ravi Baraiya, B.V.Sc.Updated 2 Nov 20261 source

Rimadyl chewable tablets contain 25, 75 or 100 mg of carprofen and are given to dogs at 2 mg/lb (4.4 mg/kg) once daily, or 1 mg/lb (2.2 mg/kg) twice daily ^[1]. They are not for cats ^[1].

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

Rimadyl 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.

Rimadyl strengths and presentations

Presentation	Contains	Strength check
Rimadyl chewable 25 mg PO	Carprofen 25 mg per tablet^[1] Scored	Confirmed
Rimadyl chewable 75 mg PO	Carprofen 75 mg per tablet^[1] Scored	Confirmed
Rimadyl chewable 100 mg PO	Carprofen 100 mg per tablet^[1] Scored	Confirmed

Rimadyl dose by species

Species	Use	Dose	Route	How often	Basis
Dogs	Osteoarthritis / post-operative pain Label: 2 mg/lb. Before surgery: about 2 hours before the procedure.	4.4 mg/kg^[1]	PO	Once daily	Label
Dogs	Osteoarthritis / post-operative pain (divided) Label: 1 mg/lb twice daily.	2.2 mg/kg^[1]	PO	Twice daily	Label

Label directions

2 mg/lb once daily, or divided as 1 mg/lb twice daily ^[1].
For post-operative pain give about 2 hours before the procedure ^[1].

Warnings and precautions

Do not use in cats ^[1].
Not recommended for dogs with bleeding disorders; avoid other anti-inflammatory drugs at the same time ^[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 ^[1].

Key safety points

Do not use in cats ^[1].
Not recommended for dogs with bleeding disorders; avoid using with other anti-inflammatory drugs ^[1].
Do not use in dogs with previous hypersensitivity to carprofen ^[1].

All about carprofen — doses by species and every brand →

Frequently asked questions

What is the Rimadyl dose for dogs?

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

What strengths does Rimadyl come in?

25 mg, 75 mg and 100 mg scored chewable tablets ^[1].

Other brands of carprofen

More from Zoetis

All veterinary products →

Rimadyl is a trademark of its owner. This page is an independent clinical reference and is not affiliated with Zoetis. 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

RIMADYL (carprofen) chewable — labelDailyMed (US NLM) — FDA-approved label, Zoetis · 2026 · Product label
Passage read from this source
Rimadyl chewable tablets are scored, and contain 25 mg, 75 mg, or 100 mg of carprofen per tablet.
The recommended dosage for oral administration to dogs is 2 mg/lb of body weight daily.
For the control of postoperative pain, administer approximately 2 hours before the procedure.
Do not use in cats.

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