Loop diuretic · For Cats · 18 lb
How much Lasix for a 18 lb cat?
A 18 lb cat (8.2 kg) should receive approximately 16.3 mg of Lasix per dose, given every 8-24 hours (based on severity).
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
Lasix dose for a 18 lb cat
Low Dose
8.2
mg
Standard
16.3
mg
Max Safe
32.7
mg
Frequency
every 8-24 hours (based on severity)
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
Lasix for a different size cat
FAQ · 18 lb cat
Questions about Lasix for a 18 lb cat
How much Lasix for a 18 lb cat?
What is the safe dose range of Lasix for a 18 lb cat?
How often can I give Lasix to a 18 lb cat?
Need a different weight?
Use the calculator on the main Lasix page for any exact weight, or read the full dosage chart and safety information.
Full Lasix 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 Furosemide.
Read more about our methodology and how we calculate dosages.