My dog just got yearly vaccines, but now he’s acting super tired and won’t eat. Should I be worried?

My dog had his annual vaccines yesterday, and since then, he's been unusually tired and hasn't shown any interest in eating. Normally, he's full of energy and can't wait to dig into his food, so this sudden change is worrying me. Are these side effects expected after vaccinations, or is this a sign of something more serious that I should address?

Answer

It is not uncommon for dogs to experience some mild side effects such as lethargy and decreased appetite after receiving their vaccinations. However, it's important to monitor your dog closely to ensure symptoms do not worsen or persist for more than a couple of days.

  • Mild fatigue and appetite loss can occur post-vaccination.
  • Monitor your dog's symptoms over the next 24-48 hours.
  • Seek veterinary advice if symptoms persist or escalate.

Your dog’s immune system is responding to the vaccine, which can sometimes lead to temporary tiredness and loss of appetite. This is generally not a cause for concern unless these symptoms last beyond 48 hours or intensify. Remember to keep your pet comfortable and ensure they have access to fresh water.

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

  • What should I do if my dog doesn't eat after vaccinations?

    Offer small, bland meals and ensure they have plenty of fresh water. If they refuse food for more than 48 hours, consult a veterinarian.

  • How long will my dog be tired after getting vaccines?

    Mild lethargy can last 24-48 hours post-vaccination. If your dog remains lethargic beyond this, or other symptoms arise, seek veterinary advice.

  • Are there any serious side effects I should watch for post-vaccine?

    Rarely, more serious reactions like vomiting, facial swelling, or difficulty breathing can occur. If these symptoms develop, seek immediate veterinary care.

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