For dogs and cats

Cat and dog are sleeping

Flagyl (Metronidazole) is an antibiotic widely used to treat protozoan infections (Giardia, Entamoeba, Trichmonas and Balantidium) in dogs, cats and other domestic animals. It is also used for the treatment of chronic intestinal inflammatory diseases.
As a rule, veterinarians prescribe Flagyl for any anaerobic infection. It is a potent drug to treat the following pathologies:

Flagyl from $0.26
  • Diarrhea.
  • Dysentery.
  • Trichomoniasis.
  • Anaerobic infections that occur after whelping.
  • Malignant edema.
  • Gingivitis.
  • Cancer sores.
  • Necrotic mastitis.
  • Necrobacteriosis.
  • Enterotoxemia.

Veterinarians recommend Flagyl for the above-mentioned diseases because most pets have high tolerance to it. The medicine is not harmful, it affects only protozoal infections. It is highly advised to administer antihelminthic therapy and to change a diet during treatment.
The drug is also available as an ointment and gel for skin problems caused by anaerobic microorganisms.

It’s not recommended to use Flagyl in the following cases:

  • Pregnancy.
  • Lactation period.
  • Liver failure.
  • Individual intolerance to the drug components.

In case of diarrhea, the drug should be administered in the following way:

  • Crush a half of the tablet into powder.
  • Add some water and mix it with powder.
  • Feed it to a pet with a syringe without a needle.

Flagyl is available in the form of solutions for intravenous administration which is recommended in severe and complicated cases. Such therapy should not be conducted for more than 3 days with the following switch to an oral administration of tablets. The dosage is individual and should be prescribed only by a doctor!

Metronidazole is absorbed rapidly in the gastrointestinal tract of a dog or cat to reach a maximum concentration after 1.5-2 hours. However, if the drug was given to an animal after or with food, the absorption is slowed down.

Flagyl is metabolized by the liver, with active metabolites continued treatment of protozoal infection. After 6-8 hours, 50% of the drug is observed in the plasma; after 6-8 hours, 80% is excreted in the urine and the feces. In the result of metabolism, a skin pigmentation can deveop and urine can turn a red-brown color.

For cats and dogs, the dose of metronidazole is calculated based on weight. Usual dosage for cats is 10mg/kilo and for dogs – 15-20 mg/kilo. The drug is administrated every 12 hours.


Jim Jim avatar

My dog ​​has a nasty habit of picking trash on the street. For a long time, there were nor bad consequences, but one day the dog became sick, lost appetite, didn’t want to for for a walk. The veterinarian run lab tests and found lamblias. He immediately prescribed a course of Flagil (Metronidazolum). I was surprised to learn that it is good for animals because I took it myself after surgery. I was afraid of side affects because my dog was quite old. But the veterinarian assured me that everything would be fine. I gave Flagil to my dog for a prescribed number of days and her health improved significantly. I also gave her vitamins to build up her immune system. For the duration of treatment, I had to put my dog on a meat free diet. It was a challenge for my pet to be deprived of her favorite food. But we did it. I want to say that the drug helped my dog to recover and she didn’t have any side effects.