Gave my dog Trifexis this morning, and now he's been really lethargic—should I be worried?

I gave my dog his Trifexis dose this morning, and since then, he seems unusually lethargic. He's not moving around much and seems disinterested in his usual activities. Is this a normal reaction to the medication, or should I be concerned about something more serious?

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Answer

It is not uncommon for dogs to exhibit some lethargy after taking Trifexis, but monitoring for other signs or prolonged symptoms is important to ensure your dog's well-being.

  • Monitor your dog for additional symptoms
  • Lethargy can be a normal side effect
  • Consult a vet if symptoms persist or worsen

Trifexis is a commonly used flea, heartworm, and intestinal worm preventative, and it is known that some dogs may experience mild side effects like lethargy. However, if your dog remains unusually lethargic or if you notice other symptoms such as vomiting, disorientation, or weakness, it is best to consult a veterinarian. These could indicate a more serious reaction that requires professional evaluation.

Book a consultation with a licensed vet at Dial A Vet for just $49 AUD if you're unsure or if symptoms are getting worse.

Frequently Asked Questions

  • What should I do if my dog is lethargic after medication?

    Observe your dog for a day, and if the lethargy persists or worsens, contact your vet to rule out any serious reactions.

  • Are there common side effects of Trifexis?

    Yes, Trifexis side effects can include vomiting, itching, decreased appetite, and lethargy. If any severe reactions occur, reach out to a vet.

  • Is it necessary to visit a vet if my dog seems off after Trifexis?

    If your dog's condition doesn't improve or if you notice worrying signs, a veterinary visit is recommended to ensure their health and safety.

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

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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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