My cat has been sleeping all day after getting a vaccine, should I be worried, Dial A Vet?

Yesterday, my cat received a vaccine, and today she has been sleeping almost the entire day. I understand that vaccines can sometimes cause tiredness, but I’m starting to worry since she usually has so much energy. Is this normal behavior after a vaccination, or should I be concerned?

Answer

It's common for a cat to feel tired or a bit under the weather after receiving a vaccine. However, it's understandable to be concerned given your cat's usual energy levels.

  • Post-vaccine fatigue is common and usually short-lived.
  • Monitor for any signs of more serious side effects.
  • Contact a vet if symptoms persist or worsen.

Vaccinations can cause mild side effects like fatigue because your cat's immune system is working to build protection against potential diseases. It's usually nothing to worry about, and most cats return to their normal behavior within a day or two. However, if your cat's lethargy continues or you notice symptoms like swelling at the injection site, loss of appetite, or fever, it would be best to consult with a 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

  • Why is my cat so sleepy after a vaccine?

    Slight tiredness can occur as the vaccine stimulates the immune system. Your cat should gradually return to normal activity levels.

  • How long should vaccine side effects last?

    Most mild side effects resolve within 24 to 48 hours. If they last longer, contact your veterinarian.

  • When should I be concerned about my cat's symptoms?

    If your cat exhibits severe symptoms such as persistent vomiting, difficulty breathing, or extreme lethargy, seek immediate veterinary care.

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