Cephalexin for Dogs and Cats
Cephalexin for Dogs and Cats
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At a Glance
Cephalexin is a first-generation antibiotic and bactericide founded in 1945.
Cephalexin belongs to a class of antibiotics called cephalosporins that fight and treat numerous bacterial infections in the petโ€™s body.
Cephalexin treats skin, ear, soft tissue, and urinary tract infections as well as respiratory tract infections, such as bronchitis.
A tablet, capsule, or oral suspension is administered orally two to three times a day.

Cephalexin for Dogs and Cats

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At a Glance
Cephalexin is a first-generation antibiotic and bactericide founded in 1945.
Cephalexin belongs to a class of antibiotics called cephalosporins that fight and treat numerous bacterial infections in the petโ€™s body.
Cephalexin treats skin, ear, soft tissue, and urinary tract infections as well as respiratory tract infections, such as bronchitis.
A tablet, capsule, or oral suspension is administered orally two to three times a day.

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Ultimate Guide to Cephalexin

Meet A First-Generation Antibiotic: Cephalexin!

Cephalexin is the veterinarian-approved dog and cat antibiotic that treats common bacterial infections (e.g., urinary, skin, bone, joint, and respiratory tract infections). Cephalexin is a first-generation antibiotic within the five-generation Cephalosporin antibiotic family.

While Cephalexin for Dogs and Cats is often prescribed to combat common bacteria found in dogs and cats, Cephalexin is also used to fight off infections in humans!

How does Cephalexin work?

Cephalexin for dogs and cats is a safe and effective antibiotic used to combat a wide range of primary and secondary bacterial infections from dermal to urinary. It is effective against common bone, joint, staph, and deep skin infections.

Cephalexin's only ingredient Cephalosporin is the main bactericide. Cephalosporins act like the antibiotic penicillin in preventing peptidoglycan to synthesize the bacterial cell wall. This results in the death of the now susceptible bacteria.

How is Cephalexin administered?

Cephalexin tablets or capsules of 250 mg or 500 mg dosages are administered orally two to three times a day, and missed doses will reduce the therapy's effectiveness. Cephalexin can be given with or without food.

Which pets should not use Cephalexin for Dogs and Cats?

Pregnant, nursing, or breeding animals, those who have allergic reactions to other antibiotics, those with liver or kidney failure, and pets with a history of seizures. Cephalexin for Dogs and Cats isn't used to treat fungal or viral infections.

Cephalexin can be combined with other medications to cover a broad group of bacteria and infection in pets. However, Cephalexin cannot be taken with most other bacterial antibiotics and blood thinners. YOU MUST ASK YOUR VETERINARIAN.

What are the potential side effects of which you should be aware?

Cephalexin for Dogs and Cat's most common adverse reactions reported are vomiting, nausea, and diarrhea, which are alleviated by giving the medication with food.

Other common side effects are allergic reactions like hives, swelling, and itching; pain passing urine; unusual fatigue; yellowing of the eyes or skin; and rapid or difficulty breathing. Rare side effects may include gas, genital or anal irritation (i.e., yeast infections or thrush), headaches, joint or muscle pain, and loss of appetite.

Cats might experience fevers, and dogs might experience hyperexcitability, drooling, and panting. Both pets might receive skin rashes or redness. Anything that seems unusual or even questionable, contact your veterinarian.

Contact your veterinarian in the event of an allergic reaction or for an unusual reaction due to the administering of the Cephalexin!

We hope that the below FAQs can answer some of the reviewers' and your concerns.


  1. What are common brand names for Cephalexin?

    Cephalexin for Dogs and Cats is the generic alternative to Keflex, Daxbia, Biocef, Advancis, and Keftab.

  2. What are the Cephalexin and Keflex dosage?

    Cephalexin (Keflex) comes in 250 mg capsules or tablets OR 500 mg capsules or tablets.

  3. What do the Keflex reviews say?

    Cephalexin (Keflex) reviews demonstrate 4 stars out of 5. Most reviewers say that they trust this antibiotic for their dogs and cats. Some say that they wish that it didn't need a prescription so they could get it for their other household pets. The great news is that it is effective and affordable!

  4. How long does it take for Cephalexin to work?

    It may take up to 48 hours for Cephalexin's maximum effectiveness. Stopping this medication before the entire course is completed can cause infection to recur or worsen. If the situation or infection worsens, contact your veterinarian.

  5. What is the five-generation history of Cephalosporin?

    Since the first cephalosporin was discovered in 1945, scientists have been improving the structure of cephalosporins to make them more effective against a wider range of bacteria. However, Cephalexin is part of the first group of cephalosporins discovered.

    Each time the structure changes, a new "generation" of cephalosporins are made, though they all start with cef, ceph, or kef.

  6. What happens if you overdose your pet on Cephalexin?

    An overdose of Cephalexin will result in stomach or abdominal pain and may cause vomiting or diarrhea. However, make sure to consult your veterinarian or take your pet to an emergency veterinary clinic.

Concluding Thoughts

The most important thing that you should know about Cephalexin for Dogs and Cats is that it is an antibiotic and bactericide that combats numerous infections in the pet's body.

DISCLAIMER: Ask your veterinarian or consult with one of our pet care specialists at 1-800-844-1427. This informative article is not meant to substitute for the diagnosis, treatment, and professional advice from your veterinarian or other qualified professionals regarding a medical condition.

Cephalexin for dogs and cats is the generic alternative to Keflex.
  • Urinary Health Pharmacy
  • Skin & Coat Pharmacy
  • Ear Care Pharmacy
  • Antibiotics Pharmacy
  • Oral Application
  • Cat Pet Type
  • Dog Pet Type

What Are the Benefits of Cephalexin?

Cephalexin for Dogs and Cats is counted amongst one of the most recommended antibacterial drugs for pets by numerous reputable experts and veterinarians. The main constituent of the medicine is Cephalosporin. Cephalosporins are classified under beta-lactam antibiotics. The compound is commonly used in the prevention of a broad spectrum of infections caused by gram-positive and gram-negative bacterias. Cephalosporin is advantageous in the treatment of many ailments in cats and dogs. These maladies that cause suffering in your pets are urinary tract infections, skin infections, meningitis, intra-abdominal infections, and various other infections. The bactericidal works by disrupting the synthesis of the peptidoglycan layer, which is made up of sugar and amino acid that forms a net-like layer outside the plasma membrane of the bacterial cell. To maintain the structural integrity of the cell wall peptidoglycan layer is very important. This disruption indirectly affects the growth procedure of the bacterial body. Cephalexin for Dogs and Cats does not work against any fungal or bacterial infections such as flu, the common cold, and mumps.

What Your Pet Should Not Eat When Taking Cephalexin?

It is commonly observed, sometimes your petโ€™s veterinarian advises a change in your petโ€™s diet while taking certain medication. This change in the diet of your pet is done because some foods or food products can adversely affect or interfere in the absorption process of certain medicinal components. In the case of Cephalexin for Dogs and Cats, there are also some restrictions in your petโ€™s diet provided by your petโ€™s veterinarian that are to be strictly followed. Some of these foods that are restricted by your petโ€™s veterinarian while administering Cephalexin are chocolate, foods that have acidic contents such as vinegar and citrus juice, tomato-based products such as sauce, puree, or ketchup, soybean-based products such as soya sauce, and various carbonated drinks.

Is 250mg of Cephalexin Strong?

The conditions of administration of Cephalexin for Dogs and Cats can change in various pets. These changes can be directly related to their species, body type, weight, size, amount of activity, and metabolism. Your petโ€™s veterinarian may recommend the use of Cephalexin for Dogs and Cats if your pet shows signs of some sort of bacterial infestation or skin infections in them. The medicine Cephalexin Capsule is an orally administered drug. The drug Cephalexin for Dogs and Cats comes in the form of a capsule made up of 250 gm medicinal contents. A dose of Cephalexin is administered every six hours to your pet. It is generally administered for one to two weeks for best results. In severe cases like chronic ear infections in dogs and cats, the dosage of Cephalexin for Dogs and Cats can change to larger oral doses according to the situation.

Is Cephalexin an Antibiotic?

Cephalexin for Dogs and Cats is one of the most popular bactericides present among the common pharmaceuticals that are available on market. The compound Cephalexin is a beta-lactam antibiotic that falls under the first-generation cephalosporin. The nucleus of cephalosporin has been modified over the years to gain different properties. These modifications are categorized into different generations. It can be observed that like most of the cephalosporin that is commonly used in medical purposes, Cephalexin is not metabolized. Cephalexin for Dogs and Cats is generally used in the treatment of infections caused by bacterial bodies. These infections can include certain types of pneumonia, respiratory infections, skin infections, bone and joint infections, strep throat or streptococcal pharyngitis, urinary tract infections, ear infections, and bacterial endocarditis. If you notice any of the above-mentioned ailments in your pet you can immediately contact your veterinarian for the proper administration of medication.

Does Cephalexin Cause Drowsiness?

Cephalexin Oral Capsule For Dogs And Cats is regarded as one of the safest medications for the administration purpose in the pets present in the market. Cephalexin is listed on, The WHO Model List of Essential Medicines, as one of the most effective and safest medicines required in a healthy system. The medicine Cephalexin for Dogs and Cats does not have any sedative or tranquilizing component in it. So, it does not cause any form of drowsiness to your pet.

What Skin Infections Does Cephalexin Treat?

Cephalexin Oral Capsule For Dogs And Cats can be included in the list of some of the most excellent and outstanding medicines for skin infections that are highly recommended by experts in the veterinary medicine field. The drug Cephalexin, as an antibiotic, can be administered for the treatment of skin infections of your pet. It is highly effective against streptococcal and staphylococcal infections.

How Long Should Dogs and Cats Be Treated With Cephalexin?

Cephalexin's normal dosage range is 10 to 18 mg per pound (22 to 40 mg/kg) administered orally once every 6 to 12 hours for 7 to 28 days. However, it's crucial to adhere to the precise directions given by your vet because the dosage may change depending on the severity of the infection and other unique conditions.

Can Cephalexin Be Used in Conjunction With Other Medications?

Cephalexin can interact with certain medications and supplements, including metformin (a medication used to treat diabetes), warfarin (a blood thinner), and zinc supplements. These interactions may affect the effectiveness of the drug or dietary supplement, and the chance of adverse effects may also rise. Additionally, cephalexin may reduce the effectiveness of live cholera and typhoid vaccines, so it is important to inform your veterinarian if your pet has received or is due for any vaccinations while on cephalexin.

What Are Some Expected Side Effects of Cephalexin in Dogs and Cats?

Cephalexin side effects are usually mild and rarely occur. The most common side effects reported in dogs and cats taking cephalexin are gastrointestinal, including loss of appetite, vomiting, and diarrhea. These symptoms are typically minimal and resolve independently once the course of medicine is completed. However, in some cases, these side effects can become severe, causing dehydration and other complications.

Is a Prescription Required for Cephalexin?

Yes, cephalexin requires a prescription from a recognized veterinarian to be purchased.

Where Can I Get Cephalexin?

Cephalexin is a prescription medication and can only be obtained with a valid prescription from a licensed veterinarian. Once you obtain a prescription from your veterinarian, you can buy cephalexin at a veterinary pharmacy. Some large retail chains and online pharmacies may also carry veterinary medications, but ensuring that the pharmacy is reputable and only sells FDA-approved medications is important.

How Should Cephalexin Be Stored?

Cephalexin must be kept at room temperature, dry, and free from moisture and sunlight. Keeping the medicine out of kids' and animals' reach is crucial. The lid of the original Cephalexin container should be securely closed. Also, Cephalexin shouldn't be kept in the kitchen, bathroom, or any other space that might expose it to heat or moisture.

Can Cephalexin Be Used for Puppies and Kittens?

Yes, cephalexin can treat bacterial infections in puppies and kittens. The weight, age, and ailment being treated of the puppy or kitten will determine the proper dose of cephalexin to administer. For puppies and kittens, the recommended cephalexin dosage is 10 to 15 mg per pound (22 to 33 mg/kg) of body weight, given once every 6 to 12 hours for 7 to 28 days.

Are There Any Age or Weight Restrictions for Dogs and Cats Using Cephalexin?

There are no specific age or weight restrictions for the use of cephalexin in dogs and cats, but the appropriate dose may vary depending on the animal's weight, age, and overall health. Cephalexin is generally considered safe for puppies and kittens, but it should be used cautiously in animals with preexisting liver or kidney disease.

Can Dogs and Cats With Urinary Tract Infections Be Treated With Cephalexin?

Yes, dogs and cats with urinary tract infections can be treated with cephalexin. Bacteria cause urinary tract infections, and cephalexin is an effective antibiotic against many bacterial infections.

Are There Any Dietary Restrictions While Using Cephalexin in Dogs and Cats?

When using cephalexin, dogs and cats are not subject to dietary restrictions. But when taking any medicine, it's crucial to ensure your pet is drinking plenty of water and eating a nutritious, balanced diet. Additionally, some pets that take cephalexin may develop gastrointestinal discomfort. Therefore, it could be required to change their food to aid with any symptoms.

What Are Some Symptoms That Cats With Utis May Show?

Cats with urinary tract infections (UTIs) may exhibit a variety of symptoms, including frequent urination or attempts to urinate, straining to urinate, painful urination, blood in the urine, urinating outside of the litter box, excessive licking of the genital area, lethargy or decreased activity, loss of appetite, and vomiting.

Cephalexin contains Cephalosporin

Side effects of Cephalexin for dogs and cats rarely occur, but may include loss of appetite, vomiting, diarrhea, drooling, rapid breathing, excitability and fever in cats. Animals with allergies to penicillin or cephalosporins should not use this drug, and may exhibit itching, rash, difficulty breathing, or more serious symptoms if they do so. Use Cephalexin with caution in pregnant and nursing animals.

Use as directed by a veterinarian. In typical cases, dosage is 10-15 mg/lb, administered orally twice a day for both cats and dogs. Cephalexin can be taken with or without food and be sure to complete the full course of treatment in order to prevent relapse. Do not use Cephalexin for dogs and cats to treat fungal or viral infections, or those caused by parasites and mites.

Store Cephalexin at room temperature away from moisture or heat.

Ask your veterinarian or consult with one of our pet care specialists at 1-800-844-1427 before giving your pet Cephalexin for dogs and cats.

This information is for informational purposes only and is not meant as a substitute for the professional advice of, or diagnosis or treatment by, your veterinarian. Always seek the advice of your veterinarian or other qualified professional with any questions you may have regarding a medical condition. Never disregard or delay seeking professional advice due to what you may have read on our website. Our medications are FDA approved and/or EPA regulated when and as required by law.

How to Order Prescriptions Online

1. Find the Right Product

Make sure it matches your pets prescription. Donโ€™t forget to compare the dosage for pills/capsules!

2. Add to Cart

Just like any other online store. Make sure the quantity matches whatโ€™s been prescribed by your vetinarian.

3. Tell Us About Your Pet and Vet

Answer some questions during checkout and weโ€™ll contact your vet and verify the prescription for you. You can also mail us the written prescription.

4. Thatโ€™s It!

If the prescription has any refills, processing your future orders for that medication can be expedited.

Related Articles

About Cephalosporin, in Cephalxin Capsules for Pets

Antibiotic (Cephalexin Capsules) for Treating Bacterial Infections in Cats and Dogs

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Great product

This is a great antibiotic for my white lab. He had a hot spot and ear infection and this medication cleared it right up

Jill recommends this item.
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They did the job just wish they got here faster!

Em recommends this item.
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Did the job just wish the whole process and shipping was a little faster!

Ash recommends this item.
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These pills are okay.

I got these pills from my vet several different times. And everytime I would give these to her she would vomit so much. Because one time she had pimples all over her chin he said it was a staph infection. And I had to stop giving them to her. Then she got scrathced on the nose and she ripped it open and that time he gave me these orange pills that was $ 30.00 for 10 pills. She puked at first but then they was helping her. And now she cut her paw and I had some left over of these cephalexin I been giving them to her so she don't get a infection in her paw. And she has not puked once. So I guess these pills are okay for certain dogs. Mine is a rottweiler/german shepherd.

Nicole_a_rottweilergerman_shepherd_owner recommends this item.
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Good for skin infections

My bull terrier has used this product for her skin infections and it's worked well.*This is a prescription item

Verona recommends this item.
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