Non-steroidal anti-inflammatory drug (NSAID) · For Dogs · 100 lb

How much Rimadyl for a 100 lb dog?

A 100 lb dog (45.4 kg) should receive approximately 99.8 mg of Rimadyl per dose, given every 12-24 hours (4.4mg/kg once daily or 2.2mg/kg twice daily).

This dosage information is for educational purposes only. Always consult your veterinarian before giving any medication to your pet. Dosages may vary based on your pet's health conditions, other medications, and individual factors.

Content reviewed by licensed veterinarians. Sourced from Plumb's Veterinary Drug Handbook and the Merck Veterinary Manual.

Dosage · 100 lb dog

Rimadyl dose for a 100 lb dog

Low Dose

90.7

Standard

99.8

Max Safe

199.5

Frequency

every 12-24 hours (4.4mg/kg once daily or 2.2mg/kg twice daily)

Weight in kg

45.4 kg

Always confirm with your veterinarian before administering medication. These calculations are estimates based on published veterinary pharmacology references.

Other Weights

Rimadyl for a different size dog

FAQ · 100 lb dog

Questions about Rimadyl for a 100 lb dog

How much Rimadyl for a 100 lb dog?

A 100 lb dog should receive approximately 99.8 mg of Rimadyl (Carprofen) per dose, given every 12-24 hours (4.4mg/kg once daily or 2.2mg/kg twice daily). That works out to about 4 × 25 mg. Always confirm with your veterinarian before administering medication.

What is the safe dose range of Rimadyl for a 100 lb dog?

The published dose range for a 100 lb dog is roughly 90.7 mg (low) to 199.5 mg (max safe), with 99.8 mg as the typical standard dose. Frequency: every 12-24 hours (4.4mg/kg once daily or 2.2mg/kg twice daily).

How often can I give Rimadyl to a 100 lb dog?

Rimadyl is typically given every 12-24 hours (4.4mg/kg once daily or 2.2mg/kg twice daily). Do not exceed the recommended frequency without veterinary guidance.

Need a different weight?

Use the calculator on the main Rimadyl page for any exact weight, or read the full dosage chart and safety information.

Full Rimadyl dosage guide →

Sources · 09

Sources & references

The dosage information on this page is compiled from the following veterinary and pharmaceutical references:

Plumb's Veterinary Drug Handbook — the standard veterinary pharmacology reference used by veterinarians worldwide.
Merck Veterinary Manual — a trusted, peer-reviewed resource for veterinary professionals and pet owners.
DailyMed (FDA Drug Labels) — official FDA-approved drug labeling and prescribing information for Carprofen.

Read more about our methodology and how we calculate dosages.