Just wormed my year-old male cat yesterday and now he's refusing to eat. Should I be worried, Dial A Vet?

Yesterday, I gave my year-old male cat his deworming medication, and since then, he has completely lost interest in food. He used to be such an enthusiastic eater, and now he’s barely touched his bowl all day. Should I be concerned about this change in his appetite, or is it a typical reaction after worming?

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Answer

Your cat's sudden loss of appetite after receiving deworming medication can be concerning, especially if he was previously enthusiastic about his meals. It's important to understand whether this is a typical reaction or a sign of something more serious.

  • Temporary appetite loss can occur after deworming.
  • Monitor his behavior for any other unusual symptoms.
  • Consult a vet if the appetite change continues beyond 24–48 hours.

It is not uncommon for cats to experience a temporary decrease in appetite after taking deworming medication, as their bodies adjust to the treatment. However, if your cat's appetite does not improve within a day or two, or if you notice any additional symptoms such as vomiting, diarrhea, or lethargy, it's important to contact a veterinarian. These could be signs of an adverse reaction or another underlying issue.

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 cats to not eat after deworming?

    Yes, it's relatively common for cats to experience mild changes in appetite after deworming. Watch your cat's behavior and contact a vet if the lack of appetite persists.

  • How long does it take for a cat to return to normal after deworming?

    Most cats should resume normal eating habits within 24–48 hours. If your cat continues to exhibit a lack of appetite beyond this period, consult a vet.

  • What should I do if my cat shows other symptoms after deworming?

    If your cat shows signs of distress such as vomiting, diarrhea, or lethargy, please contact a veterinarian promptly. These could indicate a reaction to the medication or an unrelated health issue.

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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.

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