Petriage Clinical Insights

IMPORTANT: This article, which is provided for educational purposes only, is based on published veterinary data and decades of work with pets and pet parents. The information provided here is not designed to be comprehensive but to help you avoid the pitfalls of online misinformation and most importantly, to frame the conversation you should have with your veterinarian. Your veterinarian’s perspective may differ from what is expressed here. Always consult with your veterinarian.


Your pet may be lethargic if they seem off or have decreased interest in their usual activities. You know your pet, so trust your instincts if something just seems off. If you suspect lethargy, it is important to consult with your vet since it may indicate a more serious medical condition. Instead of focusing on the cause of your pet's lethargy, pay close attention to their behavior, especially the progression of their lethargy over time. 


  • Discontinue anti-inflammatory and pain medicines, until your pet is eating regularly. Consult with your vet about the need to stop other oral medications.
  • If possible with a home scale, weigh your pet daily and look for any weight loss.