Cephalexin For Dogs Dosage Calculator
Calculate the recommended Cephalexin (Keflex) dosage for your dog based on its weight and the prescribed dose.
Bookmark this Calculator!
Understanding Cephalexin (Keflex) for Dogs
Critical Safety Notice
Cephalexin is a prescription-only antibiotic. It is illegal and dangerous to administer this medication to your pet without a valid prescription and guidance from a licensed veterinarian. This article and calculator are for informational purposes only and should NEVER be used to decide a dose for your dog. Doing so could lead to ineffective treatment, antibiotic resistance, or severe harm to your pet.
What is Cephalexin?
Cephalexin (often known by brand names like Keflex® or Rilexine®) is a broad-spectrum cephalosporin antibiotic. It is one of the most commonly prescribed antibiotics in veterinary medicine because it is effective against a wide range of bacteria and is generally well-tolerated by dogs.
It works by disrupting the formation of bacterial cell walls, which ultimately kills the bacteria.
What is Cephalexin Used to Treat in Dogs?
Veterinarians prescribe Cephalexin to treat a variety of bacterial infections, including:
- Skin Infections (Pyoderma): This is the most common use, treating hot spots, abscesses, and wound infections.
- Urinary Tract Infections (UTIs): Effective against common bacteria that cause bladder and kidney infections.
- Respiratory Infections: Used for infections in the lungs and airways.
- Bone and Joint Infections: Can be used to treat osteomyelitis and infectious arthritis.
Standard Dosage Information
The typical dosage of Cephalexin for dogs, as determined by a veterinarian, is usually between 10 to 15 milligrams (mg) per pound (lb) of body weight. This dose is typically administered every 8 to 12 hours.
For example, a 50-pound dog might be prescribed a dose between 500 mg (at 10 mg/lb) and 750 mg (at 15 mg/lb). The veterinarian will choose the exact dose and frequency based on the type and severity of the infection.
It is crucial to complete the full course of antibiotics as prescribed, even if your dog seems better. Stopping early can lead to a relapse of the infection and contribute to antibiotic resistance.
Frequently Asked Questions (FAQ)
What are the potential side effects?
The most common side effects are gastrointestinal upset, such as vomiting and diarrhea. Giving the medication with food can sometimes help. More serious allergic reactions are rare but possible. Contact your vet if you notice any adverse effects.
Can I use Cephalexin from my own prescription for my dog?
Absolutely not. Human and animal physiology are different, and human medications may contain ingredients (like xylitol) that are toxic to dogs. Only use medication specifically prescribed for your pet by a vet.
What if my dog is allergic to penicillin?
There is a small chance of cross-reactivity between penicillins and cephalosporins. You must inform your veterinarian if your dog has a known allergy to penicillin or any other antibiotic before they prescribe Cephalexin.
What should I do if I miss a dose?
Give the missed dose as soon as you remember, then continue with the regular schedule. Do not give two doses at once. If it's close to the time for the next dose, skip the missed dose and resume the normal schedule. Contact your vet if you are unsure.
Similar Calculators
Calculate the mortality rate within a group of animals over time.
Calculate the appropriate Benadryl (diphenhydramine) dosage for your dog based on its weight.
Calculate the appropriate Benadryl (diphenhydramine) dosage for your cat.
Calculate the Body Mass Index (BMI) for a cat to assess its weight status.
Assess the potential toxicity level if a cat has ingested chocolate.
Explore Other Calculators
Calculate your car's 0-60 mph time based on its horsepower and weight.
Quickly calculate the date that is 100 days from a starting date. Perfect for tracking 100-day challenges or project milestones.
Estimate your self-employment taxes as a freelancer or independent contractor. Helps you plan for quarterly tax payments and avoid surprises.
Find the date that is 120 days from any given start date. Useful for planning timelines, loan terms, and long-term projects.
Calculate the date that is 180 days (about six months) from a specific start date. Ideal for setting semi-annual goals or deadlines.
A simple tool to find the date that is exactly 30 days from a given start date. Commonly used for trial periods and monthly planning.
Quickly add or subtract 30 minutes from any given time. A handy tool for scheduling meetings, breaks, or appointments.
Project the growth of your 401(k) retirement savings over time. See how contributions, employer match, and investment returns can impact your nest egg.