My year-old cat got her shots four days ago, and now she's been really lethargic and isn't eating much. Is this normal, or should I take her back to the vet?

My year-old cat had her vaccinations four days ago, and since then, she's been unusually lethargic and not eating as much as she usually does. I'm starting to get a bit concerned because she's normally so active and has a good appetite. Is this kind of reaction common after getting shots, or should I be considering a follow-up visit to the vet?

Answer

This change in your cat's behavior following her vaccinations can be concerning for a caring pet owner. While mild reactions are possible, ongoing lethargy and reduced appetite warrant attention.

  • Monitor your cat's behavior and appetite closely.
  • Mild lethargy is common, but prolonged changes should be addressed.
  • Consider a follow-up with your vet if symptoms persist or worsen.

It is not unusual for cats to experience mild side effects such as lethargy or reduced appetite after vaccinations. However, these symptoms should generally improve within a couple of days. If your cat continues to show signs of being unwell or if you notice any additional symptoms such as vomiting or swelling at the injection site, it would be best to consult with your veterinarian.

Book a consultation with a licensed vet at Dial A Vet for just $49 AUD if you're unsure or symptoms are getting worse.

Frequently Asked Questions

  • How long do side effects from vaccinations usually last?

    Side effects from vaccinations in cats are generally mild and should resolve within 24 to 48 hours. If they persist longer, consulting a vet is a good step.

  • What should I do if my cat stops eating after vaccines?

    Offer your cat her favorite foods to entice her to eat. If she still refuses food or seems unwell, a follow-up with your vet is advised.

  • When should I be concerned about my cat's reaction to vaccines?

    If your cat becomes very lethargic, starts vomiting, or if you notice swelling around the injection site, you should contact your veterinarian promptly.

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