💊 Cephalexin Dosage Calculator for Dogs
Estimate dosage ranges for cephalexin (a first-generation cephalosporin antibiotic) using standard veterinary guidelines.
Typical cephalexin protocols use 10–22 mg/kg every 12 hours.
Veterinary Guidance Required
Cephalexin is a prescription antibiotic. Use this tool for educational purposes only and confirm exact dosing, duration, and contraindications with your veterinarian.
How to Use This Calculator
Measure accurate weight
Weigh your dog or use a recent veterinary record. Precise weight ensures appropriate dosing.
Decide on dosing schedule
Follow your veterinarian’s instructions for dosing every 8 or 12 hours.
Discuss results with your vet
Use the displayed range to verify prescriptions and ask questions about tablets vs. capsules.
Formula
Dose (mg) = Weight(kg) × 10–22 mg/kg
Divide the total daily requirement by the number of administrations per day (2 or 3) if you need per-dose values.
Full Description
Cephalexin is a broad-spectrum cephalosporin antibiotic commonly prescribed for skin infections, wound management, and urinary tract infections in dogs. Typical dosing ranges from 10 to 22 mg per kilogram of body weight, delivered every 8 to 12 hours depending on the severity and location of the infection.
Because cephalexin is metabolized by the kidneys, dogs with renal impairment require close veterinary supervision. Inform your veterinarian about all medications and supplements to avoid adverse interactions.
Frequently Asked Questions
Can I use human cephalexin on my dog?
Only under veterinary direction. Some human capsules contain dosages or additives unsuitable for dogs.
What if a dose is missed?
Administer it when remembered unless the next dose is due soon. Never double-dose without veterinary guidance.
How long is treatment usually?
Skin infections often require 7–14 days, while deeper or chronic infections may need longer courses. Complete the full prescription unless your vet instructs otherwise.
What side effects should I watch for?
Common issues include GI upset (vomiting, diarrhea). Severe reactions like hives or facial swelling require immediate veterinary attention.