Phenoxybenzamine Hydrochloride Dosing for dogs, Cats, Horses By Weight
Important Safety Information
For presurgical treatment of pheochromocytoma in dogs: give 2 weeks prior to surgery to stabilize blood pressure.
Use with caution in animals with cardiovascular disease or hypotension.
Reference Source
Saunders Handbook of VETERINARY DRUGS, Page 653-655
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Standard Dosage Guidelines
Small Animal Dosage
| Species | Route | Dosage | Frequency |
|---|---|---|---|
| Dogs | PO | 0.25 mg/kg | q8-12h or 0.5 mg/kg q24h |
| PO (Presurgical) | 0.6 mg/kg | q12h for 2 weeks prior to surgery | |
| Cats | PO | 0.5 mg/kg | q12h |
| IV | 0.5 mg/kg | Single dose for urethral relaxation |
Large Animal Dosage
| Species | Route | Dosage | Frequency |
|---|---|---|---|
| Horses | IV | 1 mg/kg | q24h |
| PO | 0.7 mg/kg | q6h |