Cat Cephalexin Dosage Calculator - Accurate Feline Antibiotic Dosing

Calculate the precise cephalexin dosage for cats based on your pet's weight with our veterinary-approved tool. This cat antibiotic calculator ensures safe and effective dosing for feline bacterial infections, following standard veterinary guidelines used by professionals worldwide.

What is Cephalexin for Cats?

Cephalexin (also known as Keflex) is a first-generation cephalosporin antibiotic widely prescribed by veterinarians for treating bacterial infections in cats. This broad-spectrum antibiotic effectively treats skin infections, urinary tract infections (UTIs), respiratory infections, and wound infections in felines.

How to Calculate Cat Cephalexin Dosage

Step-by-Step Instructions

1. Enter your cat's current weight in pounds (lb) or kilograms (kg)
2. Select the appropriate unit using the toggle buttons
3. Review the calculated dosage displayed automatically
4. Copy the results using the copy button for easy reference
5. Consult your veterinarian before administering any medication

Dosage Formula

The standard cephalexin dosage for cats follows these veterinary guidelines:

• 10 mg per pound (22 mg per kilogram) of body weight
• Administered twice daily (every 12 hours)
• Formula: Cat Weight × Dosage Rate = Total mg per dose

Cat Cephalexin Uses and Benefits

Common Conditions Treated

• Skin and soft tissue infections (wounds, abscesses, dermatitis)
• Urinary tract infections (bladder infections, cystitis)
• Respiratory tract infections (pneumonia, bronchitis)
• Bone and joint infections (osteomyelitis, arthritis)
• Post-surgical infection prevention

Why Choose Our Calculator

• Veterinary-approved dosing based on AVMA guidelines
• Dual unit conversion (pounds to kilograms automatically)
• Precise calculations rounded to appropriate decimal places
• Copy-friendly results for easy veterinary communication
• Mobile-optimized for use anywhere

Safety Guidelines and Precautions

Before Giving Cephalexin to Your Cat

• Obtain veterinary prescription - never use human cephalexin
• Inform your vet about other medications your cat is taking
• Check for allergies to penicillin or cephalosporin antibiotics
• Confirm proper diagnosis through veterinary examination

Administration Best Practices

• Give with or without food (food may reduce stomach upset)
• Complete the full course even if symptoms improve
• Store at room temperature away from moisture
• Never double dose if you miss a scheduled administration

Weight Conversion Reference

Frequently Asked Questions

How much cephalexin should I give my 10-pound cat?

A 10-pound cat should receive 100 mg of cephalexin twice daily (every 12 hours). This follows the standard dosing of 10 mg per pound of body weight.

Can I give my cat human cephalexin?

No, never give human cephalexin to cats. Veterinary-formulated cephalexin is specifically designed for pets with appropriate concentrations and additives safe for feline consumption.

What if my cat misses a dose of cephalexin?

Give the missed dose as soon as you remember, but if it's close to the next scheduled dose, skip the missed dose. Never double dose cephalexin as this can cause adverse effects.

How long does cephalexin take to work in cats?

Most cats show improvement within 24-48 hours of starting cephalexin treatment. However, continue the full prescribed course even if symptoms resolve early.

What are the side effects of cephalexin in cats?

Common side effects include mild gastrointestinal upset (vomiting, diarrhea), loss of appetite, and lethargy. Contact your veterinarian if side effects persist or worsen.

Can pregnant or nursing cats take cephalexin?

Cephalexin is generally considered safe for pregnant and nursing cats, but veterinary supervision is essential. Your vet will weigh the benefits against potential risks.

How should I store cephalexin for my cat?

Store cephalexin capsules or tablets at room temperature (68-77°F) in a dry place away from light. Liquid suspensions may require refrigeration - check the label.

What infections does cephalexin treat in cats?

Cephalexin effectively treats bacterial infections including skin infections, UTIs, respiratory infections, and post-surgical infections. It does not treat viral or fungal infections.

When to Contact Your Veterinarian

Seek immediate veterinary attention if your cat experiences:

• Severe vomiting or diarrhea
• Allergic reactions (swelling, difficulty breathing)
• Lack of improvement after 48-72 hours
• Worsening of symptoms during treatment

Professional Veterinary Resources

This cephalexin dosage calculator provides estimates based on standard veterinary guidelines. Always consult with a licensed veterinarian for proper diagnosis, prescription, and monitoring of antibiotic therapy in cats.

Ready to calculate your cat's cephalexin dosage? Use our calculator above for instant, accurate results based on your pet's weight.