Metronidazole Killed My Cat?

When I searched online ”Metronidazole killed my cat”, I found this following heart-breaking story in a cat forum.

”It devastated me when my cat died. I had only had her for a short time, but she quickly became a beloved member of our family. I couldn’t believe it when the vet told me that the metronidazole I had given her was the cause. I never would have guessed that this common medication could be so dangerous to cats. We are heartbroken to share that our cat, Simon, passed away last night after a short battle with an intestinal infection. We had taken him to the vet on Monday after he started vomiting and having diarrhea. They did some tests and put him on metronidazole, but unfortunately it didn’t work and his condition worsened.

We euthanized him yesterday evening when there was no hope for recovery. It’s been a tough few days for us as we try to come to terms with this sudden loss. Simon was only four years old, and he was such a sweet, loving cat. We’re grateful that we could spend his final days with him, surrounded by those who loved him most. As we mourn Simon, we want other pet owners to be aware of the dangers of metronidazole (brand name Flagyl), which is commonly used to treat gastrointestinal infections in cats. Simon’s story is a reminder that even though this medication is often prescribed for cats, it can be very dangerous and even deadly sometimes”.

This is truly a tragic story. But can Metronidazole kill a cat? We will answer this question along with other things related to Metronidazole and cat. Let’s start with the most important question:

Will Metronidazole Hurt a Cat?

No, metronidazole is not harmful to cats. In fact, it is often used to treat infections and other medical conditions in cats.

How Long Does It Take for Metronidazole to Leave a Cats System?

The time that it takes for metronidazole to leave a cat’s system depends on the route of administration and the cat’s metabolism. When given orally, metronidazole is absorbed from the gastrointestinal tract and enters the bloodstream. It is then distributed to various tissues and organs, where it exerts its antibacterial and antiparasitic effects.

Metabolism occurs in the liver, and excretion takes place through the kidneys. The half-life of metronidazole in cats ranges from 6 to 12 hours, which means it takes about this amount of time for the drug to be reduced by half in the body. This means that it can take up to 24 hours for metronidazole to be completely eliminated from a cat’s system.

Intravenous administration of metronidazole results in more rapid absorption and distribution than when it is given orally. The half-life of IV-administered metronidazole in cats is shorter, at 3-4 hours. However, because a longer period of time is required for elimination through the kidneys, the total duration of action may not be much different than when metronidazole is given orally.

As with any medication, there are always potential side effects associated with metronidazole use in cats. These include gastrointestinal upset, such as vomiting and diarrhea; neurological problems, such as tremors and seizures; and blood disorders. Rarely, allergic reactions may occur.

How Much Metronidazole Do You Give a 10 Pound Cat?

The standard dosage of metronidazole for cats is 7.5 to 10 milligrams (mg) per kilogram (kg) of body weight. This means that a 10 pound cat would need between 75 and 100 mg of metronidazole. The dose is usually given twice a day for 7 to 10 days.

Can You Mix Metronidazole With Wet Cat Food?

Yes, you can mix metronidazole with wet cat food.

To administer metronidazole to your cat, you’ll want to mix it with wet food. You can do this by mixing it in a liquid food or mixing it in the food itself. If you use a liquid food like chicken broth or gravy, make sure it’s warm before you add the metronidazole so that it dissolves more easily.

Metronidazole Toxicity in Cats

Dear Cat Lovers, We would like to share some important information regarding metronidazole toxicity in cats. Metronidazole is a medication that is used to treat various conditions including infections, diarrhea, and inflammation.

While it is generally safe for cats, there have been reports of metronidazole toxicity resulting in severe illness or death. The most common symptoms of metronidazole toxicity include vomiting, loss of appetite, lethargy, and seizures. If your cat exhibits any of these symptoms after taking metronidazole, please contact your veterinarian immediately.

Treatment for metronidazole toxicity typically includes IV fluids and close monitoring by a veterinarian. We recommend you talk to your veterinarian before giving your cat any medication, even if it is over-the-counter. Be sure to provide them with a complete list of all medications your cat is taking, as well as any other relevant medical history.

This will help them determine whether metronidazole is the best option for your cat’s specific condition.

How Long Can a Cat Take Metronidazole?

The time that your cat will need to take metronidazole will depend on the condition being treated.

For most conditions, metronidazole is given for 7-14 days. If your cat has a more serious infection, they may need to take metronidazole for a longer time. It’s important to follow your veterinarian’s instructions and give your cat the full course of medication, even if they feel better before the end of treatment.

Stopping treatment early could cause the infection to come back or make it more resistant to future treatment.

What to Do If My Cat Still Has Diarrhea After Taking Metronidazole?

If your cat is still having diarrhea after taking metronidazole, there are a few things you can do to help ease their discomfort. First, make sure they are drinking plenty of water to avoid dehydration. You can also give them small amounts of plain yogurt or cottage cheese, as the probiotics may help calm their stomach.

If your cat is still showing signs of distress, contact your veterinarian for further advice.

Find Out Whether Other Things That Can Kill Your Cat


Metronidazole is a medication used to treat infections caused by protozoan parasites. It can be used in cats to treat Giardia and Trichomonosis, which are common among cats.

Metronidazole is only available as an oral medication, so it must be given to your cat with food. The recommended dose for treating Giardia or Trichomonosis is 7.5-10 mg/kg of body weight twice daily for 5-7 days.

Generally Metronidazole is safe for cats. However every cat is different. Although rare, but it can cause side effects in some cats. If you have questions about metronidazole or other medications for your cat, please contact your veterinarian.

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