Can Dial A Vet advise if it’s normal for my cat to be more lethargic than usual after receiving an Onsior injection?

I noticed that my cat has been more lethargic than usual ever since she received an Onsior injection yesterday. She's typically quite active, so this sudden change in her energy level has me concerned. Is this a common reaction after such a treatment, or should I bring her in for a check-up?

Embark Dog DNA Test

Recommended Product

Your dog's DNA could reveal hidden health risks.

Screen for 270+ genetic health risks and 350+ breeds. Veterinarian developed, research partner of Cornell University.

$199 USD
$139 USD
Save $60· Free US Shipping

Answer

It's understandable to be worried about your cat's increased lethargy following an Onsior injection. While some pets may experience mild reactions to medications, persistent lethargy can warrant further investigation.

  • Monitor your cat’s energy levels closely.
  • If symptoms persist or worsen, consult with a vet.
  • Post-injection reactions can vary from pet to pet.

Onsior is a non-steroidal anti-inflammatory drug (NSAID) commonly used to manage pain and inflammation in cats. Although it is generally well-tolerated, every cat may react differently. It is not unusual for cats to experience some temporary lethargy after the injection. However, if your cat's energy levels do not improve or if she exhibits other symptoms, it is best to consult with a veterinarian for a thorough assessment.

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 lethargy a common side effect of Onsior?

    Lethargy can be a side effect, but it is usually mild and temporary. If it persists, consult a vet.

  • What other side effects might occur with Onsior?

    Other possible side effects include vomiting, decreased appetite, or gastrointestinal upset. Seek veterinary advice if these occur.

  • When should I seek immediate veterinary care?

    If your cat exhibits severe reactions such as vomiting, collapse, or seizures, seek immediate veterinary care.

Clinically Approved Standard by Dial A Vet Veterinary Team

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.

Next available appointment

Loading…