Does dewormer make cats sleepy?

Yesterday evening, I gave my cat a dewormer pill, and since then, she's been unusually sleepy and lethargic. I'm a bit concerned because she usually has so much energy, especially in the evenings. Is this tiredness a normal side effect of the dewormer, or should I be worried about something else?

Answer

It's understandable to be concerned when your cat's behavior changes. While dewormers are generally safe, mild side effects such as lethargy can occur in some cats after administration.

  • Mild lethargy is a possible temporary side effect after deworming.
  • Monitor for other symptoms like vomiting or diarrhea that could indicate an adverse reaction.
  • Contact a vet if lethargy persists or if other concerning symptoms develop.

In many cases, cats may experience temporary tiredness as their body processes the medication. This can be considered a normal reaction, just as humans might feel a bit off after taking certain medicines. However, if your cat's behavior does not return to normal within a day or if she shows additional symptoms like vomiting, diarrhea, or loss of appetite, it would be best to consult with a vet.

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 are common side effects of deworming medications in cats?

    Common side effects may include mild lethargy, decreased appetite, or diarrhea. These should pass within a day or two.

  • When should I be concerned after giving my cat a dewormer?

    If your cat remains lethargic for more than 24 hours or shows severe symptoms such as vomiting, severe diarrhea, or collapse, it is important to seek veterinary care immediately.

  • How can I help my cat feel better after deworming?

    Ensure she has a quiet place to rest, offers plenty of fresh water, and maintains a familiar, comfortable environment. Monitoring her closely for any changes or worsening of symptoms is crucial.

If this is an emergency, please seek immediate veterinary care.

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