Lidocaine Hydrochloride Dosing for Dogs, Cats, Horses By Weight
Important Safety Information
Do not exceed 8 mg/kg total in dogs for antiarrhythmic IV bolus administration.
Use with caution in animals with cardiovascular disease, liver impairment, or seizures.
Monitor for signs of toxicity including CNS effects and cardiovascular changes.
Reference Source
Saunders Handbook of VETERINARY DRUGS, Page 474-476
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Standard Dosage Guidelines
Small Animal Dosage
| Species | Purpose | Route | Dosage | Frequency |
|---|---|---|---|---|
| Dogs | Antiarrhythmic | IV | 2-4 mg/kg | Single dose (max 8 mg/kg over 10 min) |
| IV CRI | 25-75 mcg/kg/min | Continuous rate infusion | ||
| IM | 6 mg/kg | Every 1.5 hours | ||
| Epidural | Epidural | 4.4 mg/kg | Single dose of 2% solution | |
| Analgesia | IV Bolus + CRI | 2 mg/kg + 0.05 mg/kg/min | Bolus then CRI for 24 hours | |
| MLK CRI | Morphine 0.24 mg/kg/hr Lidocaine 3 mg/kg/hr Ketamine 0.6 mg/kg/hr |
Perioperative CRI | ||
| Cats | Antiarrhythmic | IV Initial | 0.1-0.4 mg/kg | Initial dose, may increase |
| IV Loading + CRI | 0.5-1 mg/kg + 10-20 mcg/kg/min | Loading dose then CRI | ||
| Epidural | Epidural | 4.4 mg/kg | Single dose of 2% solution |
Large Animal Dosage
| Species | Purpose | Route | Dosage | Frequency |
|---|---|---|---|---|
| Horses | Antiarrhythmic | IV | 0.25-0.5 mg/kg | q5-15 min, total 1.5 mg/kg, then 0.05 mg/kg/min CRI |
| Postoperative Ileus | IV | 1.3 mg/kg | Over 15 min, then 0.05 mg/kg/min CRI | |
| Analgesia | IV | 2 mg/kg | Then 50 mcg/kg/min CRI |