Phenobarbital's side effects on dogs—what should I watch out for?

My dog was recently prescribed Phenobarbital for seizures, and I've read there can be some side effects. Since starting the medication last week, I've noticed a bit of increased sleepiness and some wobbliness when walking. Are these normal side effects, or should I be looking out for anything more serious?

Answer

It's common for dogs on Phenobarbital to experience increased sleepiness and wobbliness as side effects. However, it's important to monitor your dog closely for any severe reactions or worsening symptoms.

  • Phenobarbital can cause drowsiness and coordination issues.
  • Monitor your dog's symptoms for any changes.
  • Contact your vet if symptoms persist or worsen.

Phenobarbital is a widely used medication for controlling seizures in dogs. While increased sleepiness and some wobbliness can be normal initial side effects, they usually stabilize as your dog's body adjusts to the medication. It's important to keep an eye on your dog's behavior and contact your veterinarian if these symptoms persist or if you notice any severe side effects like persistent vomiting, jaundice, or severe wobbliness. Always ensure your pet is in a safe environment to prevent any accidents due to their reduced coordination.

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 Phenobarbital in dogs?

    Common side effects include drowsiness, increased thirst and urination, and sometimes ataxia, which is wobbliness or lack of coordination. These often decrease over time as your pet adjusts to the medication.

  • When should I contact my vet?

    If your dog's side effects do not improve after a couple of weeks, or if you notice severe side effects like extreme lethargy, vomiting, jaundice, or severe imbalance, contact your vet promptly.

  • Is increased thirst normal?

    Yes, increased thirst and urination can be normal side effects of Phenobarbital. However, if these become excessive or are accompanied by other concerning symptoms, consult your veterinarian.

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

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