Levetiracetam Dosing for Dogs, Cats, Horses By Weight
Important Safety Information
IV use in dogs is for emergency situations only. Duration of IV injection is approximately 3 hours.
Rectal administration in dogs may not be practical due to volume constraints.
More frequent administration or higher doses may be necessary with concurrent phenobarbital treatment in dogs.
Reference Source
Saunders Handbook of VETERINARY DRUGS, Page 469-471
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Standard Dosage Guidelines
Small Animal Dosage
| Species | Route | Dosage | Frequency | Notes |
|---|---|---|---|---|
| Dogs | PO | 20 mg/kg | q8h | More frequent administration or higher doses may be necessary with concurrent phenobarbital treatment |
| PO Extended-Release | 30 mg/kg | q12h | Extended-release tablets | |
| IV | 20-60 mg/kg | IV bolus, repeated if necessary | Emergency situations only. Duration approximately 3 hours | |
| Rectal | 40 mg/kg | As needed | 100 mg/mL solution. Volume may be too large to be practical | |
| Cats | PO | 20 mg/kg | q8h |
Large Animal Dosage
| Species | Route | Dosage | Frequency | Notes |
|---|---|---|---|---|
| Horses | IV | 30 mg/kg | Short-term treatment | |
| PO | 30 mg/kg | q24h |