Is Your Cat Not Eating After a Convenia Injection?

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Cat Not Eating After a Convenia Injection

If you’re a cat parent, it’s not uncommon to fret over changes in your furry pal’s behavior. And if you’ve recently taken your cat to the vet and they received a Convenia shot, you might have observed that your kitty’s appetite has taken a nosedive.

Convenia is a powerful, slow-release antibiotic used to treat various bacterial infections in cats. Although it’s considered safe, some felines may experience appetite-reducing side effects.

In this article, we’ll dive deep into why your cat is not eating after a Convenia injection and how to handle the situation.

Why is Your Cat Refusing to Eat After a Convenia Injection

When you give your cat antibiotics, they can destabilize the balance of gut flora and kill both harmful and beneficial bacteria. This can cause side effects such as lethargy, nausea, and loss of appetite, reducing your cat’s interest in food.

Usually, loss of appetite should dissipate within a few days as your cat’s body gets accustomed to the medication. However, if any of these undesirable effects persist or worsen over time, you should seek veterinary care as soon as possible.

How to Get Your Cat to Eat After a Convenia Injection

Kitten eating food

If your cat is not eating after a Convenia injection, there are a few things you can try to help stimulate their appetite:

1. Offer Strong-Smelling Food

Try giving your cat savory food with a strong smell, like tuna or chicken. Also, make sure the food is warm to make it more appealing.

2. Hand-Feed Your Cat:

Hand-feeding your cat with small amounts of food can encourage them to eat. Also, make sure they have access to water to stay hydrated.

3. Consider Using a Syringe:

Using a feeding syringe can be effective in encouraging your cat to eat. Ensure the food is watery and smooth enough to pass through the syringe easily and administer it slowly at the side of your cat’s mouth.

If your cat becomes distressed, stop and try again later. Personally, this is the method that I used with my cat.

4. Talk to Your Veterinarian:

If your cat is still not eating after using these approaches or is showing other signs of illness, it is essential to consult your veterinarian. They may suggest additional treatments or tests to determine the underlying cause of your cat’s lack of appetite.

Side Effects of a Convenia Injection in Cats

Cat Meowing

Even though Convenia is considered a good treatment for cats, it has some side effects that could impact your furry friend’s well-being. These include:

  • Vomiting
  • Diarrhea.
  • Lethargy
  • Decreased appetite.

While serious side effects are rare, an allergic reaction triggered by the drug can lead to adverse events, particularly in cats with a previous allergy to cephalosporin or penicillin-type antibiotics.

These events may include facial swelling, breathing difficulties, tremors, seizures, skin reactions at the injection site, and, in rare cases, even death.

Frequently asked questions

How Long Does Convenia Stay in Your Cat’s System

Convenia is generally given as a single injection, and its effect lasts up to 14 days, which is enough to treat the infection.

However, the drug can remain in the cat’s body for up to 65 days after the injection.


If you’ve had experience with Convenia and its effects on your furry friend, please share your thoughts and feedback in the comments below.

While on the cat subjects, why not read our latest tips and tricks on how to wean cats off temptations?

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