Metronidazole for Cats: Uses, Dosage, and Safety

By Thew, 24 May, 2025

Metronidazole is a commonly prescribed antibiotic and antiprotozoal medication used in both human and veterinary medicine. Metronidazole for Cats is frequently recommended by veterinarians to treat a variety of gastrointestinal and bacterial infections. If your feline companion has been diagnosed with certain digestive or parasitic conditions, your vet may suggest this medication as part of the treatment plan.

What is Metronidazole?

Metronidazole is an antimicrobial drug that targets anaerobic bacteria and certain parasites. It is especially effective against Giardia, a parasite that commonly causes diarrhea in cats. In addition to its antiparasitic properties, metronidazole has anti-inflammatory effects on the gastrointestinal tract, making it useful for treating conditions like inflammatory bowel disease (IBD).

Veterinarians often prescribe metronidazole to manage:

  • Diarrhea of unknown origin
  • Bacterial infections in the intestines
  • Giardia infections
  • Inflammatory bowel disease
  • Dental infections or abscesses
  • Post-surgical infections

How is Metronidazole Given to Cats?

Metronidazole is available in various forms, including tablets, capsules, and liquid suspensions. The dosage and duration of treatment depend on the cat’s weight, age, and the specific condition being treated. It’s essential to follow your veterinarian’s instructions exactly, as incorrect dosage can lead to ineffective treatment or adverse effects.

The standard dosage for cats ranges from 5 to 25 mg per pound, administered once or twice daily. It's crucial never to self-prescribe or adjust the dose without veterinary guidance, as cats are particularly sensitive to medications.

Side Effects and Risks

Although generally safe when used as directed, metronidazole can cause side effects in some cats. Common side effects include:

  • Nausea or vomiting
  • Loss of appetite
  • Drooling or bad taste
  • Diarrhea (ironically, in some cases)
  • Lethargy

More serious side effects, though rare, may include neurological symptoms such as tremors, seizures, or unsteady movements. If you notice any unusual behavior or side effects, contact your veterinarian immediately.

Cats with liver disease or pregnant cats should not be given metronidazole unless absolutely necessary and under strict supervision, as the medication can cross the placenta and affect the fetus.

Storage and Handling

Store metronidazole in a cool, dry place away from direct sunlight. If you are using a liquid suspension, make sure to shake it well before each use. Keep the medication out of reach of children and pets not being treated.

Where to Buy

Metronidazole for cats is a prescription medication, which means you will need a veterinarian’s approval to obtain it. Many veterinary clinics provide it directly, but you can also find it through reputable online pet pharmacies. One option to consider is petworldgdl.com, a trusted supplier of pet medications and supplements.

Final Thoughts

Metronidazole can be a highly effective treatment for various bacterial and parasitic infections in cats when used under veterinary supervision. Always complete the full course of treatment, even if your cat’s symptoms improve, to prevent resistance and recurrence. By working closely with your vet, you can ensure your feline friend gets back to health safely and comfortably.