Nonsteroidal Anti-Inflammatory Drug (NSAID) / Antiplatelet Agent · For Cats · 12 lb

How much Bayer Aspirin for a 12 lb cat?

A 12 lb cat (5.4 kg) should receive approximately 43.5 mg of Bayer Aspirin per dose, given Every 48-72 hours ONLY (NOT 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 · 12 lb cat

Bayer Aspirin dose for a 12 lb cat

Low Dose

32.7

Standard

43.5

Max Safe

54.4

Frequency

Every 48-72 hours ONLY (NOT daily)

Weight in kg

5.4 kg

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

Other Weights

Bayer Aspirin for a different size cat

FAQ · 12 lb cat

Questions about Bayer Aspirin for a 12 lb cat

How much Bayer Aspirin for a 12 lb cat?

A 12 lb cat should receive approximately 43.5 mg of Bayer Aspirin (Aspirin (Acetylsalicylic Acid)) per dose, given Every 48-72 hours ONLY (NOT daily). That works out to about 0.5 × 81 mg. Always confirm with your veterinarian before administering medication.

What is the safe dose range of Bayer Aspirin for a 12 lb cat?

The published dose range for a 12 lb cat is roughly 32.7 mg (low) to 54.4 mg (max safe), with 43.5 mg as the typical standard dose. Frequency: Every 48-72 hours ONLY (NOT daily).

How often can I give Bayer Aspirin to a 12 lb cat?

Bayer Aspirin is typically given Every 48-72 hours ONLY (NOT daily). Do not exceed the recommended frequency without veterinary guidance.

Need a different weight?

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

Full Bayer Aspirin 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 Aspirin (Acetylsalicylic Acid).

Read more about our methodology and how we calculate dosages.