Primidone

Generic name: primidone [ PRIM-i-done ]
Brand name: Mysoline
Dosage form: oral tablet (250 mg; 50 mg)
Drug class:Barbiturate anticonvulsants

Medically reviewed by Drugs.com on Feb 8, 2022. Written by Cerner Multum.

What is primidone?

Primidone is an anticonvulsant medicine that is used to control seizures.

Primidone may also be used for purposes not listed in this medication guide.

Warnings

Some people have thoughts about suicide while taking primidone. Stay alert to changes in your mood or symptoms. Report any new or worsening symptoms to your doctor.

Do not stop using primidone suddenly, even if you feel fine. Stopping suddenly may cause increased seizures.

Before taking this medicine

You should not use primidone if you are allergic to primidone or phenobarbital, or if you have:

• porphyria (a genetic enzyme disorder that causes symptoms affecting the skin or nervous system).

Tell your doctor if you have ever had:

• depression;

• a mood disorder; or

• suicidal thoughts or actions.

Some people have thoughts about suicide while taking primidone. Your doctor will need to check your progress at regular visits. Your family or other caregivers should also be alert to changes in your mood or symptoms.

Do not start or stop taking seizure medication during pregnancy without your doctor's advice. Having a seizure during pregnancy could harm both mother and baby. Tell your doctor right away if you become pregnant.

If yo...