Medications

Phenobarbital

Caution for Cats

Danger — seek vet help

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For Dogs

Caution

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For Cats

Caution

View dog safety info →

Symptoms to Watch For

Sedation, incoordination, liver damage from chronic use

What You Need to Know

Commonly prescribed for pet seizures. Safe at prescribed doses but narrow therapeutic window. Overdose causes severe sedation and respiratory depression.

Source: Pet Poison Helpline

If your cat ingested this, act fast

Call ASPCA Poison Control: (888) 426-4435 or your emergency vet immediately.

View full emergency guide →

Safe Alternatives Your Cat CAN Have

Phenobarbital isn't safe, but these are vet-approved:

Antibiotic Ointment (Pet)

Safe

Medications

Heartworm Medication (Pet)

Prescription Flea Medication (Oral)

Frequently Asked Questions

Is phenobarbital safe for cats?

Phenobarbital is considered CAUTION for cats. Commonly prescribed for pet seizures. Safe at prescribed doses but narrow therapeutic window. Overdose causes severe sedation and respiratory depression.

What are the symptoms if my cat eats phenobarbital?

Symptoms may include: Sedation, incoordination, liver damage from chronic use.

What should I do if my cat eats phenobarbital?

Contact your veterinarian or the ASPCA Animal Poison Control Center at (888) 426-4435 immediately. Do not induce vomiting unless instructed by a professional.