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Primidone 250 mg Tablet Rx

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Product Overview

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Questions & Answers

Product Description

Primidone Tablets are used for seizure control. Primidone is believed to alter seizure-causing chemical brain impulses. It alters seizure patterns or raises chemoshock or electroshock seizure thresholds in experimental animals.

What is Primidone 250 mg Tablet?

Primidone is an anticonvulsant prescribed to for long-term use to reduce the frequency and severity of seizures and control epilepsy in dogs. This medication is also used to control seizures associated with various infections such as viral encephalitis and distemper. Primidone is used in dogs and rarely prescribed to treat cats.

Who is Primidone 250 mg Tablet for?

Typically for use in dogs, but rarely prescribed for use in cats.

Why use Primidone 250 mg Tablet?

Features of Primidone:
  • May be used for long-term treatment
  • Reduces seizures caused by many types of infection, such as distemper and viral encephalitis
  • Controls frequency and severity of epileptic seizures

How does Primidone 250 mg Tablet work?

Upon ingestion, Primidone is converted to phenobarbital, an anticonvulsant. It works to decrease nerve impulses in the pet's nervous system, helping with the reduction of seizures.


Mutual Pharmaceutical

Active ingredient(s):


How is Primidone 250 mg Tablet sold?

Sold by the tablet in 250 mg strength

What are the side effects of Primidone 250 mg Tablet?

Potential side effects include:
  • Weight gain
  • Increased appetite
  • Increased urination
  • Increased thirst
  • Agitation or anxiety upon treatment initiation
  • Liver toxicity

What special precautions are there?

Use extreme caution when administering to dogs with conditions like:
  • Respiratory disease
  • Kidney disease
  • Heart disease
  • Addison's disease
  • Anemia
  • Dehydration

What to do if overdose?

Contact your closest emergency pet hospital.

How can I store Primidone 250 mg Tablet?

Store away from direct sunlight and heat. Store at room temperature in a dry location..

Helpful Tips:

Be sure your pet has constant access to plenty of water while taking Primidone. Do not discontinue administering this medication. Stopping treatment can lead to seizure activity.

Pharmacists are standing by to offer Pet Parent counseling regarding prescription medication purchased from Allivet before and after dispensing. Pharmacists on duty are available Monday-Friday, 9:30AM - 5:30PM EST and will be on call Saturday 12:00PM - 4:00PM EST for consultation.


Use as directed by your Veterinarian. The usual dose in dogs is 2.3-6.8 mg per pound of pet’s body weight per day in 2 or 3 divided doses. Primidone can be given with food. Allow plenty of water for your pet to drink.

Main Ingredients


Dog Seizure Medication

seizure is a sudden and abnormal neurological activity occurring in the brain. Seizures may cause unusual behavior from your dog such as shaking, whining, salivation, wandering, restlessness and apprehension. The cause of your dog’s seizures may vary from Epilepsy, Canine Distemper, Brain Tumor, Head Injury or Environmental Toxins. Medications are available in the aid of seizures and their symptoms and the medications shown below may be prescribed by your veterinarian.

Levetiracetam tablets is a newer anti-epileptic drug that is used in the management of refractory epilepsy in dogs.

For certain types of seizures Gabapentin may be prescribed. Gabapentin may be first prescribed in a lower dose of 100 milligrams and slowly move up to 300 milligrams based on the severity of the dog’s seizures.

Primidone is a medication used to control seizures in dogs. The medication works by altering the chemical impulses in the brain that cause seizures. It helps raise chemoshock seizure thresholds or alters seizure patterns.

Seizures can occur for a number of reasons. Medications are prescribed to help control seizures and help your pet live a more normal life. Count on Allivet to provide you with the medication needed for your pet along with the care and attention you and your dog deserve.

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Primidone 250 mg Tablet

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