Barbiturate anticonvulsant · For Cats · 18 lb
How much Luminal for a 18 lb cat?
A 18 lb cat (8.2 kg) should receive approximately 16.3 mg of Luminal 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 · 18 lb cat
Luminal dose for a 18 lb cat
Low Dose
8.2
mg
Standard
16.3
mg
Max Safe
24.5
mg
Frequency
every 12 hours
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
Luminal for a different size cat
FAQ · 18 lb cat
Questions about Luminal for a 18 lb cat
How much Luminal for a 18 lb cat?
What is the safe dose range of Luminal for a 18 lb cat?
How often can I give Luminal to a 18 lb cat?
Need a different weight?
Use the calculator on the main Luminal page for any exact weight, or read the full dosage chart and safety information.
Full Luminal 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 Phenobarbital.
Read more about our methodology and how we calculate dosages.