Enrofloxacin is an antibiotic used to treat many types of bacterial infections.

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Enrofloxacin Basics
Enrofloxacin is available by prescription only. Enrofloxacin is a broad-spectrum fluoroquinolone. Enrofloxacin is used to treat bacterial infections found in the intestinal tract, urinary tract, liver, lungs, prostate, and skin. Fluoroquinolones work by inhibiting the replication of bacterial DNA.

Enrofloxacin Warnings
Keep out of the reach of children and pets. Enrofloxacin may interact with some other medications. Inform your veterinarian of any and all medications your pet may be taking, especially warfarin, theophylline, probenecid, phenytoin, or cyclosporine. Do not use in animals that are pregnant, nursing, or are allergic to fluoroquinolone antibiotics. Do not administer enrofloxacin within 2 hours of giving vitamins or minerals, dairy products, or antacids. Use caution when giving enrofloxacin to animals with Central Nervous System disorders. Store at room temperature, protected from light and moisture.

Enrofloxacin Directions
Use as directed by your veterinarian. Make sure to give antibiotics until the prescription is finished, unless instructed otherwise by your veterinarian. Store enrofloxacin at room temperature. Do not give enrofloxacin to any pet that is allergic to fluoroquinolones.

Enrofloxacin should not be used in young dogs of ages:

  • 2 to 8 months old in small to medium breed dogs
  • 2 to 12 months old in large breed dogs
  • 2 to 18 months old in giant breed dogs

Dosage FAQs
In the case of a missed dose of enrofloxacin, give it as soon as you remember or wait until the next dose. DO NOT GIVE A DOUBLE DOSE OF ENROFLOXACIN. In the case of an overdose of enrofloxacin, seek veterinary attention immediately. Symptoms of an overdose may include vomiting, diarrhea, or loss of appetite.

If you notice any behavioral or physiological changes in your pet during enrofloxacin treatment, contact your veterinarian immediately.

Allergic Reactions and Serious Side Effects
In the case of an allergic reaction or serious side effect, contact your veterinarian immediately. Some signs of a serious side effect or reaction may include facial swelling, hives, or breathing difficulties.

Additional information


Tablet, Injectable

Prescription Strength

2.27% (20mL), 22.7mg, 68mg, 136mg