Calculate the proper cephalexin antibiotic dosage for your cat based on weight and condition
Cephalexin is a first-generation cephalosporin antibiotic used to treat bacterial infections in cats, including skin infections, urinary tract infections, and respiratory infections.
Disclaimer: This calculator is for educational purposes only. Always consult with a licensed veterinarian for proper diagnosis and treatment.
Cephalexin is a widely prescribed first-generation cephalosporin antibiotic used to treat bacterial infections in cats. This medication works by disrupting the cell wall formation of susceptible bacteria, making it effective against skin infections, urinary tract infections, and respiratory conditions. Veterinarians commonly recommend cephalexin because of its broad-spectrum activity and relatively safe profile when administered at appropriate doses. Understanding the correct dosage is essential for ensuring treatment success while minimizing the risk of adverse effects or antibiotic resistance.
The standard cephalexin dosage for cats ranges between 15 to 35 milligrams per kilogram of body weight, typically administered twice daily. For a small cat weighing 3 kilograms, this translates to approximately 45 to 105 milligrams per dose. The specific amount within this range depends on the severity of the infection, the location of the infection, and your cat's overall health status. Liquid formulations at 250 mg/5 mL concentration are generally more practical than tablets, as they allow for precise dose adjustments suited to your cat's exact weight. Never use human tablet formulations without veterinary guidance, as a single 500 mg tablet could represent a dangerous overdose for most cats.
Before administering cephalexin to your cat, always consult with a licensed veterinarian who can properly diagnose the infection and prescribe the appropriate treatment regimen. Your vet will consider factors such as kidney function, concurrent medications, and any history of allergic reactions to beta-lactam antibiotics. Treatment duration typically ranges from 7 to 14 days, and it's critical to complete the entire prescribed course even if your cat appears to improve earlier. Stopping antibiotics prematurely can lead to treatment failure and contribute to the development of antibiotic-resistant bacteria. Monitor your cat for any adverse reactions such as vomiting, diarrhea, or loss of appetite, and report these to your veterinarian immediately.
Läkemedelsdoseringar, tillväxtprognoser och avancerade hälsokalkylatorer för katter
Explore CategoryWhile cephalexin is chemically identical whether prescribed for humans or animals, human tablet formulations are typically too strong for cats. A standard 500 mg human tablet could easily overdose a small cat. Always use veterinary-prescribed liquid formulations or specifically dosed medications for your pet, and never share human medications without explicit veterinary approval.
Signs of cephalexin overdose may include severe vomiting, persistent diarrhea, excessive drooling, loss of coordination, lethargy, and in severe cases, seizures or difficulty breathing. If you suspect your cat has received too much cephalexin, contact your veterinarian or an emergency animal hospital immediately. Prompt treatment can prevent serious complications.
You should begin to see improvement in your cat's symptoms within 24 to 48 hours of starting cephalexin treatment. However, visible improvement doesn't mean the infection is fully cleared. Complete the entire prescribed course, which is typically 7 to 14 days, to ensure all bacteria are eliminated and prevent the infection from returning or becoming resistant to treatment.
Yes, cephalexin can be administered with or without food. In fact, giving it with a small amount of food may help reduce potential stomach upset and make administration easier. If your cat experiences nausea or vomiting when taking the medication on an empty stomach, try offering it with a meal or treat to improve tolerance.
If you miss a dose, give it as soon as you remember unless it's almost time for the next scheduled dose. In that case, skip the missed dose and continue with the regular dosing schedule. Never double up on doses to make up for a missed one, as this could lead to overdose. If you frequently forget doses, set phone reminders or establish a routine to ensure consistent treatment.