Is it normal for my cat to feel lethargic and not eat much after getting vaccines on Friday?

My cat received his vaccines on Friday, and since then, he's been quite lethargic and isn't eating much. He usually bounces back pretty quickly, but this time he seems to be taking it easy. Is this a normal reaction after vaccinations, or should I be concerned about something more serious?

Embark Dog DNA Test

Recommended Product

Your dog's DNA could reveal hidden health risks.

Screen for 270+ genetic health risks and 350+ breeds. Veterinarian developed, research partner of Cornell University.

$199 USD
$139 USD
Save $60· Free US Shipping

Answer

It’s understandable to be concerned when your cat isn’t acting like himself after a vaccination. Post-vaccination lethargy and decreased appetite can be normal, but it’s always good to keep a watchful eye on any changes.

  • Lethargy and reduced appetite can be common post-vaccine reactions.
  • Monitor for signs of improvement over the coming days.
  • If symptoms persist or worsen, consider consulting a vet.

Vaccinations are vital for your cat's health, but they can sometimes cause mild reactions as their immune system responds. It's not unusual for some cats to feel a bit off color for 24-48 hours afterward. Lethargy and a temporary loss of appetite are typical symptoms; however, your cat should gradually return to normal. If these symptoms persist or are accompanied by more severe signs like vomiting, swelling at the injection site, or extreme lethargy beyond a couple of days, consult a veterinarian for further guidance.

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

  • Is it normal for my cat to be lethargic after vaccinations?

    Yes, some temporary lethargy can be normal as the immune system adjusts to the vaccine. This usually resolves within a day or two.

  • How long should I wait to consult a vet if my cat doesn’t improve?

    If your cat’s appetite and energy levels haven’t returned to normal after 48 hours or if new symptoms develop, it’s advisable to contact a vet.

  • What are signs that I should immediately take my cat to the vet?

    If your cat is experiencing severe symptoms such as vomiting, difficulty breathing, or significant swelling at the vaccine site, seek veterinary care immediately.

Clinically Approved Standard by Dial A Vet Veterinary Team

Disclaimer: The customer and expert messages presented herein may have been altered with artificial intelligence or modified to enhance readability and safeguard the privacy of individuals. This content is for informational purposes only and is not a substitute for professional veterinary advice, diagnosis, or treatment. If your pet is experiencing a medical emergency, contact your local veterinarian or emergency animal hospital immediately. Talk to a vet now.

Next available appointment

Loading…