Published dose range
The published veterinary reference range for famotidine in cats is 0.5-1 mg per kg of body weight, given every 12-24h.
Source: Merck Veterinary Manual →Published range by weight
| Weight | Famotidine (published range) |
|---|---|
| 6 lb cat | 1.4-2.7 mg |
| 8 lb cat | 1.8-3.6 mg |
| 10 lb cat | 2.3-4.5 mg |
| 12 lb cat | 2.7-5.4 mg |
| 15 lb cat | 3.4-6.8 mg |
Computed from the published 0.5-1 mg/kg reference range, every 12-24h. Product strengths rarely split evenly, so round DOWN to the nearest practical dose and confirm with your vet.
Commonly used short-term for GI upset; persistent vomiting needs a vet.
Skip it or ask a vet first if
kidney disease (dose adjustment, vet)
If you think you overdosed
Call the Pet Poison Helpline: 855-764-7661 or ASPCA Poison Control: 888-426-4435. Both are staffed 24/7 by veterinary toxicologists.