Published dose range
The published veterinary reference range for cimetidine in cats is 2.5-5 mg per kg of body weight, given every 12h.
Source: Merck Veterinary Manual →Published range by weight
| Weight | Cimetidine (published range) |
|---|---|
| 6 lb cat | 6.8-14 mg |
| 8 lb cat | 9.1-18 mg |
| 10 lb cat | 11-23 mg |
| 12 lb cat | 14-27 mg |
| 15 lb cat | 17-34 mg |
Computed from the published 2.5-5 mg/kg reference range, every 12h. Product strengths rarely split evenly, so round DOWN to the nearest practical dose and confirm with your vet.
Vet consult preferred; famotidine is the more common choice.
Skip it or ask a vet first if
many drug interactionskidney disease
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.