PetSymAIPetSymAIPetSymAI
NeurologicDog & CatPrescription

Phenobarbital

Uses

First-line long-term antiseizure drug for dogs and cats.

Common side effects

Sedation and ataxia (mostly early), liver damage on long-term use.

⚠️ Cautions

Regular drug-level and liver monitoring; never stop abruptly.