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Metronidazole for Dogs: Dosage, Side Effects & Application

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Diarrhea in dogs can be triggered by various factors. Metronidazole for dogs is one of the options for providing quick relief in such cases. However, it’s important to note that this “anti-diarrheal pill” does not replace the need to identify the exact cause through a veterinarian. Here’s what you need to know about Metronidazole for dogs.

Metronidazole for Dogs: What is it, and what is it used for?

Metronidazole for Dogs
Source: Freepik

Metronidazole for dogs is a type of antidiarrheal antibiotic. While it may sound complex, it’s essentially an antibiotic used to treat diarrhea in dogs.

This condition can be caused by various factors, including:

Metronidazole is now used not only for gastrointestinal issues but also for the following conditions:

  • Infections of the Central Nervous System
  • Inflammation of the oral cavity
  • Bone infections
  • Tooth infections

Important:

To ensure that Metronidazole works correctly for your dog without causing harm, it should only be administered if your veterinarian deems it necessary.

Metronidazole for dogs is available in tablet, capsule, and liquid forms. The liquid form is administered intravenously and should only be done by the treating veterinarian.

Proper Application and Dosage of Metronidazole

The daily dose of Metronidazole for dogs ranges from 14 to 22 mg per kilogram of body weight, depending on the condition. For severe infections, the dosage may go up to 44 mg per kilogram of the dog’s body weight.

Ideally, administer Metronidazole with some food to make it easier for the dog to swallow the tablet.

The correct dosage and application should be determined in consultation with your veterinarian, who will consider your dog’s weight.

Good to know:

Do not crush the tablet, as it reportedly has an extremely bitter taste, making administration a stressful affair.

Please note that Metronidazole should not be used in dogs with liver or kidney diseases.

How Long Does it Take for Metronidazole to Work in Dogs?

The effects of Metronidazole typically appear in dogs within 1 to 2 hours. Depending on the cause of the illness, the treatment with Metronidazole may last for 5 days or possibly longer.

For example, in the case of Giardia infestation, a 5-day treatment is usually recommended to ensure the complete elimination of these parasites.

If the therapy does not show improvement, it can be repeated after a few days of pause. Discuss this with your veterinarian.

Once the Metronidazole therapy is completed, it’s essential to ensure the restoration of your dog’s intestinal flora.

Antibiotics also affect the bacterial cultures in the intestines, and in female dogs, they can disrupt the vaginal flora. We recommend using a probiotic, even during the antibiotic therapy. For further tips, check our guide on building a dog’s intestinal flora.

Possible Side Effects of Metronidazole in Dogs

Metronidazole for Dogs
Source: Freepik

Side effects of Metronidazole in dogs may include vomiting, loss of appetite, and paradoxically, diarrhea.

As Metronidazole can penetrate the blood-brain barrier, the list of potential side effects is extensive and can include:

  • Ataxia
  • Tremors
  • Blood in the urine
  • Depression
  • Seizures
  • Disorientation
  • Allergic reactions
  • Head tilt
  • Increased salivation/retching

If you notice side effects with a neurological origin, consult your veterinarian promptly to find a less burdensome alternative.

Where Can You Get Metronidazole?

Metronidazole is a prescription medication, and you will need a prescription from your veterinarian. It is available at your local pharmacy or an online pharmacy. Your veterinarian may also have the medication in their practice.

A pack of Metronidazole 250 mg with 12 tablets costs around $15. This value serves as an initial reference for possible medication costs.

Alternatives to Metronidazole

An alternative to Metronidazole for dogs can be Metrobactin, especially if your dog has had negative experiences with Metronidazole. Metrobactin is also an antibiotic with anti-inflammatory and antiparasitic properties, particularly effective against Giardia. The treatment duration may be 10 days, and your veterinarian will determine the exact dosage.

Other alternatives containing antibiotics such as Amoxicillin and Clavulanic acid, like Synulox and Kesium for dogs, can also be considered.

Conclusion

Metronidazole for dogs is an antibiotic primarily used for diarrhea caused by parasites or inflammation. Veterinarians may also prescribe it for infections of the oral cavity, bones, and the Central Nervous System.

Your veterinarian will guide you on the proper dosage and application of Metronidazole for your dog. The list of potential side effects is long, which might be a reason to consider alternatives like Metrobactin or Synulox.

What experiences with Metronidazole for dogs can you share with us? We look forward to reading these and other helpful tips in our comments soon!

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