Follow all directions on your prescription label and read all medication guides or instruction sheets. Your doctor may occasionally change your dose. Use the medicine exactly as directed.
If you are switching to primidone from another seizure medication, you may need to start taking primidone only at bedtime. Follow your doctor's instructions.
Do not stop using primidone suddenly, even if you feel fine. Stopping suddenly may cause increased seizures. Follow your doctor's instructions about tapering your dose.
It may take several weeks before you receive the full benefit of taking primidone. Your doctor will determine how long to treat you with this medicine.
If you use this medicine long-term, you may need frequent medical tests.
Store primidone at room temperature away from moisture, light, and heat.
In case of emergency, wear or carry medical identification to let others know you take seizure medication.
 Detailed Primidone dosage information
What happens if I miss a dose?
Take the medicine as soon as you can, but skip the missed dose if it is almost time for your next dose. Do not take two doses at one time.
What happens if I overdose?
Seek emergency medical attention or call the Poison Help line at 1-800-222-1222.
