Baytril is used to treat many types of bacterial infections. It’s a fluoroquinolone antibiotic used for infections of the urinary tract, skin, prostate, GI tract, liver, and lungs.

For: Cats and Dogs (Baytril Taste Tabs) and Dogs only (Baytril Otic)

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Brand Name
Baytril (Bayer)


Generic Name
Enrofloxacin (en-row-flox’-a-sin)


What is the most important information I should know about Baytril: Baytril is a prescription medication FDA-approved for veterinary use in dogs and cats. Baytril is available as 22.7mg, 68mg and 136mg scored chewable tablets for dogs and cats and as otic (ear) drops. The usual dose of Baytril for dogs is 2.27-9.07mg/pound every 24 hours. The usual dose of Baytril for cats is 2.27mg/pound every 24 hours. The dog and cat doses may be divided into two doses 12 hours apart. Always follow the dosage instructions provided by your veterinarian. Do not give Baytril to any pet other than the pet for whom it was prescribed. Baytril is not for use in animals allergic to it or other fluoroquinolone antibiotic drugs. It is advised that Baytril should not be used in younger dogs during their rapid growth phase, approximately 2 to 8 months in small to medium breeds, 2 to 12 months in large dogs, and 2 to 18 months in giant breeds.

What is Baytril: Baytril is a fluoroquinolone antibiotic used for the treatment of bacterial infections of the urinary tract, skin, prostate, GI tract, liver, and lungs due to susceptible organisms. This medication may also be used for purposes other than those listed in this guide.

What should I discuss with my veterinarian before giving Baytril to my pet: Tell your veterinarian if your pet has had seizures, or is pregnant or lactating.

How should this medication be given: Give Baytril Tablets exactly as directed by your veterinarian. Give all of the medication your veterinarian has prescribed. Symptoms may start to improve before the infection is completely treated. Allow plenty of water for your pet to drink. Do not exceed the maximum dose of 2.27mg/pound per day in cats because of an increased risk of altered vision or blindness. When using Baytril Otic, shake well before each use and administer 5-10 drops of Baytril Otic to coat the ear lesions and ear canal. Gently massage the ear so as to ensure complete and uniform distribution of the medication throughout the external ear canal. Apply Baytril Otic twice a day for up to 14 days or as directed by your veterinarian. If you do not understand the directions ask the pharmacist or veterinarian to explain them to you. Store Baytril at room temperature away from moisture and heat. Keep this medication away from children and pets. 

What happens if I miss giving a dose: Give the missed dose as soon as you remember. However, if it is almost time for the next dose, skip the dose missed and give only the next regularly scheduled dose. Do not give a double dose of the medication.

What happens if I overdose the pet: Seek emergency veterinary medical treatment. Symptoms of overdose may include loss of appetite, vomiting, and diarrhea.

What should I avoid while giving Baytril to my pet: Do not use Baytril in animals allergic to it or other fluoroquinolone antibiotics. Do not give Baytril within 2 hours of giving an antacid or sucralfate. Do not give Baytril with vitamin/mineral products. Use caution when using Baytril Otic in animals with a punctured ear drum. 

What are the possible side effects of Baytril: Stop giving the medication and seek emergency veterinary medical attention if your pet experiences an allergic reaction (difficulty breathing; closing of the throat; swelling of the lips, tongue or face; or hives). Other less serious side effects may also occur. Continue to give the medication and talk to your veterinarian if your pet experiences loss of appetite, vomiting, diarrhea, dizziness, or drowsiness. Side effects other than those listed may occur. Talk to your veterinarian about any side effect that seems unusual or bothersome to your pet.

What other drugs will affect Baytril: Before giving Baytril, tell your veterinarian if your pet is being given warfarin, theophylline, probenecid and phenytoin. When given with cyclosporine, Baytril can increase the risk of kidney damage from the cyclosporine. Drugs other than those listed may also interact with Baytril. Talk to your veterinarian or pharmacist before giving any prescription or over-the-counter medications.