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PetDosageChart

Corticosteroid · For Cats · 18 lb

How much Prednisolone for a 18 lb cat?

A 18 lb cat (8.2 kg) should receive approximately 8.2 mg of Prednisolone per dose, given once or twice daily (then tapered).

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 · 18 lb cat

Prednisolone dose for a 18 lb cat

Low Dose

4.1

mg

Standard

8.2

mg

Max Safe

16.3

mg

Frequency

once or twice daily (then tapered)

Weight in kg

8.2 kg

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

Other Weights

Prednisolone for a different size cat

FAQ · 18 lb cat

Questions about Prednisolone for a 18 lb cat

How much Prednisolone for a 18 lb cat?
A 18 lb cat should receive approximately 8.2 mg of Prednisolone (Prednisolone) per dose, given once or twice daily (then tapered). That works out to about 1.75 × 5 mg. Always confirm with your veterinarian before administering medication.
What is the safe dose range of Prednisolone for a 18 lb cat?
The published dose range for a 18 lb cat is roughly 4.1 mg (low) to 16.3 mg (max safe), with 8.2 mg as the typical standard dose. Frequency: once or twice daily (then tapered).
How often can I give Prednisolone to a 18 lb cat?
Prednisolone is typically given once or twice daily (then tapered). Do not exceed the recommended frequency without veterinary guidance.

Need a different weight?

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

Full Prednisolone 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 Prednisolone.

Read more about our methodology and how we calculate dosages.