Quinidine Dosing for Dogs, Cats, Horses, Cattle By Weight
Important Safety Information
Do not exceed total dose of 10 mg/kg when administering IV to horses. Quinidine is poorly absorbed orally in cattle and must be given IV.
Use with caution in animals with cardiovascular disease, liver impairment, or renal dysfunction.
Reference Source
Saunders Handbook of VETERINARY DRUGS, Page 727-728
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Standard Dosage Guidelines
Small Animal Dosage
| Species | Route | Dosage | Frequency |
|---|---|---|---|
| Dogs | IM | 6-20 mg/kg | q6h |
| PO | 6-20 mg/kg | q6-8h | |
| IV | 5-10 mg/kg | q6h | |
| Cats | IM | 6-20 mg/kg | q6h |
| PO | 6-20 mg/kg | q6-8h | |
| IV | 5-10 mg/kg | q6h |
Large Animal Dosage
| Species | Route | Dosage | Frequency |
|---|---|---|---|
| Horses | PO | 11.1-22.2 mg/kg | Every 2 hours until sinus rate achieved |
| IV | 1-1.5 mg/kg | Every 10-15 min to total 10 mg/kg | |
| Cattle | IV | 40-49 mg/kg | Loading dose over 4 hours, then maintenance |