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Zeniquin 100 mg, Individual Tablet (Marbofloxacin)
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Zeniquin 200 mg, Individual Tablet (Marbofloxacin)
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Zeniquin 25 mg, Individual Tablet (Marbofloxacin)
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Zeniquin 50 mg, Individual Tablet (Marbofloxacin)
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Fluoroquinolone Antibiotics for Dogs and Cats

Zeniquin antibiotics for dogs and cats belong to the fluoroquinolone class of drugs. Zeniquin treats infections caused by bacteria susceptible to marbofloxacin, including many infections of the skin and other organs, soft tissue, and urinary tract. The film-coated, scored tablets are easy to dose and administer.

Zeniquin is a broad-spectrum antibiotic for use in dogs and cats. It effectively treats a variety of skin, soft tissue, organ, and urinary tract bacterial infections. This product has an excellent safety profile.

Benefits of Zeniquin:

  • Broad-spectrum antibiotic
  • Treats a number of different infections
  • Usually prescribed as only once-daily dosing
  • Easy-to-swallow film-coated tablets
  • Prescription-strength treatment
  • Considered safe for most adult dogs and cats

Zeniquin is only for use in cats and dogs. Do not give to other animals. Not for use in humans.

Do not allow children to handle or administer Zeniquin.

Review package directions and warnings prior to use.

Do not discontinue use before the prescription's entire course is filled; symptoms may clear up before an infection is completely eliminated.

The following directions represent a standard administration. Use exactly as prescribed by your veterinarian.


  1. Remove only the current dose from the container. Tightly close the container and put it back in its safe storage location.
  2. Administer 1.25 mg per pound of body weight once per day in cats and dogs.
  3. Give Zeniquin for 2 to 3 days after cessation of clinical signs of a skin or soft-tissue infection.
  4. Give Zeniquin for at least 10 days to treat a urinary tract infection (UTI).
  5. Give Zeniquin as prescribed for other types of infections.
  6. Consult your veterinarian if there are no signs of improvement within 5 days of use.

Frequency of Use:

Zeniquin is usually administered once daily. Do not give your pet this medication for longer than 30 days.


Keep out of reach of children and animals.

Store Zeniquin in its original container, tightly sealed, at room temperature below 86 degrees F. Protect from moisture and heat.

It is a violation of Federal Law to use this product in a manner inconsistent with its labeling.

Marbofloxacin, the active ingredient in Zeniquin, is a fluoroquinolone antibiotic. It treats infections by inhibiting the replication of bacteria's DNA. This antibiotic is highly and rapidly absorbable.

Zeniquin requires a prescription from your veterinarian.

Zeniquin (marbofloxacin)

Active Ingredients (per tablet): Marbofloxacin 25 mg, 50 mg, 100 mg, or 200 mg


Keep this product out of reach of children and animals. Do not use or store in or near open flame or heat.

Zeniquin is only intended for use in cats and dogs. Do not administer to other animals or to any cat or dog to which it was not prescribed. Do not use in humans.

Zeniquin is contraindicated in cats less than 12 months old, small and medium-breed dogs less than 8 months old, large-breed dogs less than 12 months old, and giant-breed dogs less than 18 months of age.

Follow your veterinarian's prescription. If your pet's infection does not improve within 5 days, consult your veterinarian.

Do not administer a double dose. If you miss a dose, give it as soon as you remember it, unless it is almost time for the subsequent dose.

CAUTION: Tell your veterinarian if your pet is pregnant, lactating, or used for breeding. Also tell your veterinarian if your pet has seizures or another central nervous system disorder, liver disease, or kidney disease.

Side effects may include vomiting, diarrhea, diminished appetite, dizziness, drowsiness, or others. Continue administration but talk to your veterinarian if your pet experiences any such adverse reactions.

At high doses, some fluoroquinolone antibiotics can impair vision or cause blindness in cats. If your cat develops vision problems, consult your veterinarian right away.

Allergic reactions may occur, particularly in animals with a hypersensitivity to fluoroquinolone antibiotics. Seek emergency veterinary care if your pet develops diarrhea, vomiting, facial swelling, cold limbs, difficulty breathing, rash, itching, hives, seizure, coma, or other signs of an allergic reaction.

People with an allergy to fluoroquinolone antibiotics should not handle Zeniquin.

Wait at least 2 hours between giving your pet Zeniquin and any antacid, sucralfate, or foods or supplements containing zinc, iron, calcium, aluminum, or magnesium.

If you know of or suspect an overdose, seek emergency veterinary treatment. Signs may include vomiting, diminished appetite, dehydration, reddening skin, tremors, facial swelling, and excess salivation.

Do not give your pet any other drugs or supplements while administering Zeniquin without first checking with your veterinarian.

Warranty and Manufacturer Information:

To report suspected adverse effects, and/or obtain a copy of the MSDS, call 1-800-366-5288.

NADA #141-151, Approved by FDA

Distributed by: Pfizer Animal Health, Exton, PA 19341, USA. Div. of Pfizer Inc. NY, NY 10017


January 2004

NAC No.: 36901643

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