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PetDosageChart

Opioid Analgesic (Atypical) · For Cats · 4 lb

How much Ultram for a 4 lb cat?

A 4 lb cat (1.8 kg) should receive approximately 3.6 mg of Ultram per dose, given Every 12 hours.

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 · 4 lb cat

Ultram dose for a 4 lb cat

Low Dose

1.8

mg

Standard

3.6

mg

Max Safe

7.3

mg

Frequency

Every 12 hours

Weight in kg

1.8 kg

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

Other Weights

Ultram for a different size cat

FAQ · 4 lb cat

Questions about Ultram for a 4 lb cat

How much Ultram for a 4 lb cat?
A 4 lb cat should receive approximately 3.6 mg of Ultram (Tramadol) per dose, given Every 12 hours. Always confirm with your veterinarian before administering medication.
What is the safe dose range of Ultram for a 4 lb cat?
The published dose range for a 4 lb cat is roughly 1.8 mg (low) to 7.3 mg (max safe), with 3.6 mg as the typical standard dose. Frequency: Every 12 hours.
How often can I give Ultram to a 4 lb cat?
Ultram is typically given Every 12 hours. Do not exceed the recommended frequency without veterinary guidance.

Need a different weight?

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

Full Ultram 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 Tramadol.

Read more about our methodology and how we calculate dosages.