Skip header
Free Shipping Over $49
Live Customer Care
Monday-Friday: 8AM - 7PM EST
Saturday: 9AM - 5PM EST
My ProfileMy OrdersMy AutoShipMy RxMy PetsMy VetsMy RewardsSign In
Save Up To 10% On Your First AutoShip

Primidone 50mg Tablet Rx

5.00 out of 5 stars
This Item Ships FREE!
Save 8% on your 1st AutoShip order and 4% on all future AutoShip orders

Please confirm

This item is already on your autoship schedule! Are you sure you want to add it again?

Product Overview

How To Use

What’s in it?



Questions & Answers

Product Description

Primidone is intended for the prevention of seizures in dogs. It has been found to change the chemical actions in the brain that produce seizures. 
Note* Sold per tablet

What is Primidone 50mg 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 50mg Tablet for?

Primidone is intended for use in dogs, and is on rare occasion used in cats.

Why use Primidone 50mg Tablet?

Primidone mitigates the level and prevalence of seizures linked to epilepsy. It is known to decrease frequency of seizures related to infections like viral encephalitis and distemper. It is safe to use Primidone long term.

How does Primidone 50mg Tablet work?

Upon consumption, Primidone transmutes into the anti-convulsant phenobarbital, which works through reducing nerve impulses that lead to seizures.


Mutual Pharmaceutical

Active ingredient(s):


How is Primidone 50mg Tablet sold?

Single tablet

What are the side effects of Primidone 50mg Tablet?

Side effects may include:
  • liver toxicity
  • anxiety/agitation when first starting treatment
  • increased thirst
  • increased urination
  • increased appetite
  • weight gain

What special precautions are there?

Use with extreme caution in dogs suffering from conditions like dehydration, anemia, Addison's disease, heart, kidney or respiratory diseases.

What to do if overdose?

Contact your nearest emergency animal hospital.

How can I store Primidone 50mg Tablet?

Store in a dry and cool environment. Avoid heat and direct sunlight.

Helpful Tips:

Primidone is a subscription required drug intended for longterm management of seizures and convulsions symptomatic of epilepsy. Often not indented for cats. Note* sold per tablet.

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.

Write a Review

Primidone 50mg Tablet

Ask a New Question

Don’t know something or can’t find the information you are looking for? Ask us a question!

*Required Fields
We will ONLY use your email to notify you in regards to your submission.Privacy StatementQuestions & answers are typically posted within 24 hours, pending approval.