Ranitidine Hydrochloride Dosing for dogs, Cats, Horses, Calves By Weight
Important Safety Information
For horses: The higher dose (6.6 mg/kg) is more effective at suppressing stomach acid.
For calves: Use 50 mg/kg q8h PO in milk-fed calves.
Reference Source
Saunders Handbook of VETERINARY DRUGS, Page 731-732
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Standard Dosage Guidelines
Small Animal Dosage
| Species | Route | Dosage | Frequency |
|---|---|---|---|
| Dogs | IV or PO | 2 mg/kg | q8h |
| Cats | IV | 2.5 mg/kg | q12h |
| PO | 3.5 mg/kg | q12h |
Large Animal Dosage
| Species | Route | Dosage | Frequency |
|---|---|---|---|
| Horses | PO | 2.2-6.6 mg/kg | q6-8h |
| IV | 2 mg/kg | q6-8h | |
| Calves | PO | 50 mg/kg | q8h (milk-fed calves) |