Campylobacteriosis in dogs, a gastrointestinal infection caused by bacteria from the Campylobacter genus, particularly Campylobacter jejuni, poses a significant health concern for canine companions across the United States.

This infection, which can affect dogs of all ages and breeds, is not only prevalent but also a potential zoonotic threat, meaning it can be transmitted from animals to humans, emphasizing the need for awareness among dog owners.


The primary route of infection is through the ingestion of contaminated food or water, contact with infected feces, or the environment where these bacteria thrive. Given the bacteria’s widespread presence, including in poultry, untreated water, and unpasteurized dairy products, the risk of exposure for both dogs and their owners is considerable.


Recognizing the symptoms of Campylobacter infection is crucial for timely intervention and includes diarrhea (often bloody), vomiting, fever, and lethargy. These clinical signs, however, can be mistaken for other gastrointestinal disorders, underlining the importance of a professional veterinary diagnosis.


Accurate identification of the infection involves laboratory tests such as fecal cultures, which not only confirm the presence of Campylobacter but also guide effective treatment plans.

The emphasis on proper diagnosis and treatment cannot be overstated. Treatment typically involves a course of antibiotics, particularly crucial for managing and resolving the infection.


This blog post is dedicated to unveiling the most commonly used antibiotics to treat campylobacteriosis in dogs, reflecting the latest guidelines and practices within the veterinary community in the United States.

Antibiotics For Campylobacter Infection In Dogs

When it comes to treating Campylobacter infection in dogs, the choice of antibiotics must be guided by veterinary expertise, considering factors such as the dog’s health status, age, and any potential resistance the bacteria may have developed.

Here, we delve into three antibiotics commonly utilized in the United States, based on current veterinary practices and research.

First Antibiotic Option: Erythromycin


Brief Description:

Erythromycin is a macrolide antibiotic known for its effectiveness against a wide range of bacterial infections, including Campylobacter in dogs. It works by inhibiting protein synthesis in bacteria, thereby stopping their growth.

Dosage Guidelines:

The dosage of erythromycin typically depends on the dog’s weight, with a general guideline being around 5-10 mg per kilogram of the dog’s body weight, administered orally twice a day. The duration of the treatment usually spans 7-14 days, but the exact duration should be determined by a veterinarian.

Possible Side Effects:

While erythromycin is generally safe, some dogs may experience side effects such as gastrointestinal upset, including vomiting and diarrhea. Less commonly, allergic reactions or liver enzyme elevations may occur.

Second Antibiotic Option: Azithromycin


Brief Description:

Azithromycin, another macrolide antibiotic, is favored for its longer half-life and ability to target a broad spectrum of bacteria, including Campylobacter. It’s particularly noted for its ease of administration due to less frequent dosing.

Dosage Guidelines:

Azithromycin’s dosage often ranges from 5 to 10 mg per kilogram of the dog’s body weight, given orally once daily. The treatment course is usually shorter, around 3-5 days, but the precise duration and dosage should always be confirmed by a vet.

Possible Side Effects:

Similar to erythromycin, azithromycin can cause gastrointestinal disturbances such as diarrhea or vomiting. Rarely, it may lead to liver dysfunction or temporary hearing loss.

Third Antibiotic Option: Fluoroquinolones (e.g., Enrofloxacin)


Brief Description:

Fluoroquinolones are a class of broad-spectrum antibiotics that include enrofloxacin. They are effective against a variety of bacterial infections and work by interfering with bacterial DNA replication.

Dosage Guidelines:

The dosage for enrofloxacin typically falls within the range of 5-20 mg per kilogram of the dog’s body weight, administered orally once daily. The length of treatment varies based on the severity of the infection and the dog’s response to the medication.

Possible Side Effects:

Possible adverse effects include gastrointestinal upset, central nervous system disturbances (such as seizures in dogs with pre-existing CNS disorders), and cartilage abnormalities in growing puppies.

The Importance of Veterinary Guidance

Self-prescribing antibiotics for pets is highly discouraged due to the potential for incorrect dosing, selection of inappropriate antibiotics, and contributing to antibiotic resistance.

Always consult with a veterinarian to ensure your dog receives the correct antibiotic, dosage, and duration of treatment.

A veterinarian’s guidance is crucial not only for the health and safety of your dog but also for ensuring the effectiveness of the treatment and mitigating the risk of resistance development.


Supportive Care and Management

While antibiotics play a crucial role in treating Campylobacter infection in dogs, supportive care is equally important to ensure a smooth and speedy recovery.

Here are essential tips and measures to consider:

Dietary Adjustments and Hydration

  • Easily Digestible Diet: Temporarily switching to a bland, easily digestible diet can help soothe your dog’s gastrointestinal system. Boiled chicken (no skin or bones) and white rice are often recommended.
  • Gradual Reintroduction: Once symptoms improve, gradually reintroduce your dog’s regular diet over several days to prevent any recurrence of gastrointestinal upset.
  • Hydration: Ensuring your dog remains well-hydrated is crucial, especially if they’ve been experiencing vomiting or diarrhea. Provide constant access to clean, fresh water and consider oral rehydration solutions if recommended by your vet.

Preventing Spread and Reinfection

  • Hygiene Practices: Regularly clean and disinfect your dog’s living area, food and water bowls, and toys. Good hygiene practices are essential in preventing the spread of the infection to other pets.
  • Isolation: In multi-dog households or kennels, consider isolating the infected dog during the contagious period to prevent the spread of bacteria.
  • Hand Washing: Always wash your hands thoroughly after handling your dog or cleaning up after them, especially if they have been diagnosed with Campylobacter infection.

Monitoring and Follow-up

  • Observation: Keep a close eye on your dog’s symptoms and behavior. Note any changes or improvements in their condition.
  • Veterinary Follow-up: Schedule follow-up appointments with your vet to monitor your dog’s recovery and ensure the infection has been fully resolved.
  • Prompt Action: If you notice any adverse reactions to the antibiotics or if your dog’s condition worsens, contact your vet immediately.


How long does it take for a dog to recover from campylobacteriosis with antibiotic treatment?

Recovery time can vary depending on the severity of the infection and how quickly treatment is started. With prompt and appropriate antibiotic treatment, many dogs start to show improvement within 48 to 72 hours, but complete recovery may take a week or longer.

Can humans get campylobacter from their dogs, and how can it be prevented?

Yes, humans can contract Campylobacter infection from dogs, though it’s relatively rare. Prevention involves practicing good hygiene, such as washing hands after handling pets or their waste and avoiding contact with dogs’ feces. Ensure your dog is also kept healthy and receives regular veterinary care.

Are there any home remedies or natural treatments recommended for campylobacter in dogs?

While certain home remedies may help support your dog’s recovery from gastrointestinal upset, they should not replace veterinary care or antibiotics for treating Campylobacter infection. Always consult with a vet before trying any home remedies.

How can I prevent my dog from getting campylobacter infection?

Prevention strategies include ensuring your dog has no access to contaminated food or water, maintaining good hygiene practices, and regular veterinary check-ups. Also, be cautious of environments where your dog may come into contact with the feces of other animals.

What should I do if my dog shows adverse reactions to the prescribed antibiotics?

If your dog experiences any adverse reactions to their medication, contact your veterinarian immediately. Do not attempt to adjust the dosage or stop the medication without professional guidance. Your vet may need to adjust the treatment plan or prescribe a different antibiotic.


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