Appreciate the question — let's unpack this. Accidentally giving your cat a double dose of Phenobarbital can understandably be quite alarming. Phenobarbital is used to manage seizures, but too much can cause sedation, difficulty walking, or labored breathing.
First, observe your cat closely. Mild overdose symptoms include unsteadiness, lethargy, or drowsiness. In most cases, these will subside as the extra dose works its way out of their system. Encourage your cat to rest in a quiet, comfy spot and make sure they have easy access to water.
However, if you notice more severe signs such as extreme weakness, vomiting, breathing difficulties, or a profound change in behavior, these could signal a serious issue that needs immediate veterinary attention.
Going forward, creating a medication schedule can help prevent this from happening again — a phone alarm or a medication chart can be beneficial for tracking doses.
If you're still worried or see concerning symptoms, it’s best to book a video consult with us at Dial A Vet. We can provide tailored advice and ensure your furry friend stays on the path to wellness.
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.

