Cephalexin for Cats Dosage Calculator
Calculate precise feline Cephalexin (Keflex) antibiotic dosages in liquid suspension (mL) or capsule ftions based on body weight.
Input Parameters
Enter weight and liquid or capsule formulation.
Recommended Single Dose
Feline Administration Tip
Refrigerated Cephalexin liquid suspension expires after 14 days. Shake vigorously before drawing each dose into an oral dosing syringe.
Cat Cephalexin Weight-Based Dosing Table
| Cat Weight (lbs / kg) | Single Dose (mg) | Liquid Dose (125mg/5mL) | Liquid Dose (250mg/5mL) |
|---|---|---|---|
| 6 lbs (2.7 kg) | 65 mg | 2.6 mL | 1.3 mL |
| 8 lbs (3.6 kg) | 88 mg | 3.5 mL | 1.8 mL |
| 10 lbs (4.5 kg) | 110 mg | 4.4 mL | 2.2 mL |
| 12 lbs (5.4 kg) | 132 mg | 5.3 mL | 2.6 mL |
| 15 lbs (6.8 kg) | 165 mg | 6.6 mL | 3.3 mL |
Calculation Methodology & Biological Principles
Feline Antibiotic Formula
Cephalexin inhibits bacterial cell wall synthesis. High urinary clearance makes it effective for feline bacterial urinary tt infections.
Veterinary Disclaimer
Never give human antibiotic formulations with added ingredients. Always consult a veterinarian for official diagnosis and prescription.
Frequently Asked Questions
Is Cephalexin safe for cats? ▼
Yes, Cephalexin (Keflex) is widely prescribed by veterinarians for cats to treat bacterial skin infections (feline pyoderma), wound abscesses, and urinary tt infections.
What is the recommended Cephalexin dosage for cats? ▼
The standard veterinary oral dosage of Cephalexin for cats is 10 to 15 mg per pound of body weight (approx 22 to 30 mg/kg) administered every 8 to 12 hours.
How should liquid Cephalexin be given to cats? ▼
Refrigerate oral liquid suspension and shake well before dosing. Administer liquid using a 1 mL or 3 mL syringe directly into the side of the cat's mouth or mix with a spoonful of wet food.