Skip to main content
PetDosageChart

First-generation antihistamine · For Cats · 4 lb

How much Chlor-Trimeton for a 4 lb cat?

A 4 lb cat (1.8 kg) should receive approximately 0.9 mg of Chlor-Trimeton per dose, given every 8-12 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

Chlor-Trimeton dose for a 4 lb cat

Low Dose

0.5

mg

Standard

0.9

mg

Max Safe

0.9

mg

Frequency

every 8-12 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

Chlor-Trimeton for a different size cat

FAQ · 4 lb cat

Questions about Chlor-Trimeton for a 4 lb cat

How much Chlor-Trimeton for a 4 lb cat?
A 4 lb cat should receive approximately 0.9 mg of Chlor-Trimeton (Chlorpheniramine) per dose, given every 8-12 hours. That works out to about 0.25 × 4 mg. Always confirm with your veterinarian before administering medication.
What is the safe dose range of Chlor-Trimeton for a 4 lb cat?
The published dose range for a 4 lb cat is roughly 0.5 mg (low) to 0.9 mg (max safe), with 0.9 mg as the typical standard dose. Frequency: every 8-12 hours.
How often can I give Chlor-Trimeton to a 4 lb cat?
Chlor-Trimeton is typically given every 8-12 hours. Do not exceed the recommended frequency without veterinary guidance.

Need a different weight?

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

Full Chlor-Trimeton 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 Chlorpheniramine.

Read more about our methodology and how we calculate dosages.