Cephalexin Dosage for Cats Calculator

Cephalexin is a first-generation cephalosporin antibiotic that works by interfering with bacterial cell wall formation. It's effective against many gram-positive bacteria and is commonly prescribed for skin, urinary tract, and respiratory infections in cats.

The typical dosage ranges from 15-35 mg/kg body weight, given 1-3 times daily depending on the infection severity. Always follow your veterinarian's specific prescription as dosages vary based on the condition being treated.

While the active ingredient is the same, human cephalexin should not be given to cats without veterinary supervision. Dosage requirements differ significantly, and human formulations may contain additives harmful to cats.

Cephalexin 250 mg tablets can be used for cats, but the dosage must be calculated based on the cat's weight. Most cats will need only a fraction of a 250 mg tablet, so accurate splitting or crushing may be necessary as directed by your vet.

Common side effects include gastrointestinal upset (vomiting, diarrhea, loss of appetite), and rarely, allergic reactions. Contact your veterinarian if you notice any adverse reactions or if symptoms worsen.

A 5-pound cat weighs approximately 2.3 kg. At 20 mg/kg, the single dose would be 46 mg. This calculator automatically converts weights and provides precise dosing recommendations.

Yes, cats can overdose on cephalexin, which may cause severe gastrointestinal symptoms, neurological effects, or kidney problems. Always use the exact dosage prescribed by your veterinarian and never exceed recommended amounts.

Treatment duration typically ranges from 7-14 days, but depends on the infection type and severity. Always complete the full course of antibiotics as prescribed, even if symptoms improve, to prevent antibiotic resistance.