Enrofloxacin (Baytril®) in Dogs and Cats

enrofloxacin for dogs and cats
enrofloxacin for dogs and cats


Overview of Enrofloxacin (Baytril) for Dogs and Cats

  • Enrofloxacin is a broad-spectrum antibiotic used to treat infections in animals like dogs and cats caused by susceptible bacteria. Bettors come in both an oral and injectable formulations.
  • Enrofloxacin belongs to a general class of antibiotics known as fluoroquinolones. Other related drugs in this class include ciprofloxacin.
  • Enrofloxacin is thought to inhibit the synthesis of DNA within the bacteria, resulting in bacterial death.
  • Enrofloxacin is a prescription drug and can only be obtained from a veterinarian or by prescription from a veterinarian.

Brand Names and Other Names of Enrofloxacin

  • This drug is registered for use in animals only.
  • Human formulations: None
  • Veterinary formulations: Baytril® (Bayer Animal Health)

Uses of Enrofloxacin for Dogs and Cats

Precautions and Side Effects

  • While generally safe and effective when prescribed by a veterinarian, enrofloxacin can cause side effects in some animals.
  • Enrofloxacin should not be used in animals with known hypersensitivity or allergy to the drug. Enrofloxacin should be used with caution in dogs and cats with kidney or liver disease.
  • Enrofloxacin may interact with other medications. Consult with your veterinarian to determine if other drugs your pet is receiving could interact with enrofloxacin. Such drugs include antacid medications, iron supplements and some stomach protectants.
  • Occasionally, some animals develop diarrhea or loose stools from enrofloxacin.
  • Very rarely, enrofloxacin has precipitated some behavior changes or seizures in animals.
  • Young animals treated with enrofloxacin may develop damage to the cartilage of their joints. Swollen joints and lameness are clinical signs that may be observed.
  • Enrofloxacin should not be administered to puppies. Those between the ages of 4 and 28 weeks are the most susceptible.
  • A rare but very serious adverse reaction – blindness – has been observed in cats treated with injectable enrofloxacin. When administering enrofloxacin to cats it is important not to exceed the manufacturer’s recommended dose.

How Enrofloxacin Is Supplied

  • Enrofloxacin is available in tablets of 22.7 mg, 68 mg and 136 mg.
  • There also is an injection of 22.7 mg/ml.

Dosing Information of Enrofloxacin (Baytril) for Dogs and Cats

  • Medication should never be administered without first consulting your veterinarian.
  • The typical dose of Baytril administered to dogs is 2.5 to 10 mg per pound (5 to 20 mg/kg) orally per day. The total daily dose may be given once a day or divided into twice daily doses.
  • In cats, the dose of Baytril should not exceed 5 mg/kg per day orally. The daily dose can be divided and given every 12 hours.
  • Treatment is generally extended for 2 to 3 days beyond th last clinical sign of infection.
  • Ideally Baytril should be given on an empty stomach.
  • The duration of administration depends on the condition being treated, response to the medication and the development of any adverse effects. Be certain to complete the prescription unless specifically directed by your veterinarian. Even if your pet feels better, the entire treatment plan should be completed to prevent relapse or prevent the development of resistance.


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<!–Dermatology & Integumentary diseases
Multiple organ systems can be affected
Nephrology & Urology
Otic diseases
Respiratory & Thoracic diseases



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