What is Mysoline: Uses, Warnings & Interactions

Updated Jan 13, 2021  •  Published Dec 30, 2020

Mysoline overview

BRAND NAMES:

  • Mysoline, Primidone

Generic Names:

  • Primidone

Uses:

  • Treats seizure disorders.

Therapeutic Classes:

  • Anticonvulsant

Forms:

  • Liquid, Tablet

How it’s taken:

  • By mouth

What is Mysoline used for?

Mysoline is an antiepileptic drug used to control seizures. It works by controlling the abnormal electrical activity in the brain that occurs during a seizure.

What form(s) does Mysoline come in

  • Liquid

  • Tablet

What are common Mysoline doses?

  • Tablet 50MG

  • Tablet 250MG

Common Mysoline prescriptions

  • Mysoline
    250mg tablet

  • Mysoline
    50mg tablet

How to take Mysoline

  • Take your medicine as directed. Your dose may need to be changed several times to find what works best for you. .

  • Shake the oral liquid well just before each dose. Measure the oral liquid medicine with a marked measuring spoon, oral syringe, or medicine cup.

  • Plan your doses so they are evenly spaced during the day. Talk with your doctor or pharmacist if you have questions about when to take this medicine.

  • This medicine should come with a Medication Guide. Ask your pharmacist for a copy if you do not have one.

  • Missed dose: Take a dose as soon as you remember. If it is almost time for your next dose, wait until then and take a regular dose. Do not take extra medicine to make up for a missed dose.

  • Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light. Do not freeze.

  • Take your medicine as directed. Your dose may need to be changed several times to find what works best for you. .

  • This medicine should come with a Medication Guide. Ask your pharmacist for a copy if you do not have one.

  • Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light. Do not freeze.

  • Plan your doses so they are evenly spaced during the day. Talk with your doctor or pharmacist if you have questions about when to take this medicine.

  • Missed dose: Take a dose as soon as you remember. If it is almost time for your next dose, wait until then and take a regular dose. Do not take extra medicine to make up for a missed dose.

  • Shake the oral liquid well just before each dose. Measure the oral liquid medicine with a marked measuring spoon, oral syringe, or medicine cup.

Mysoline contraindications

  • This medicine is not right for everyone. Do not use it if you had an allergic reaction to primidone or phenobarbital or if you have porphyria.

Mysoline warnings

  • Tell your doctor if you are pregnant or if you have kidney disease or a history of depression.

  • Mothers who are breastfeeding: The medicine will be in your breast milk. Stop breastfeeding if your baby becomes unusually tired or sleepy.

  • This medicine can increase depression and thoughts of suicide. Tell your doctor right away if you start to feel more depressed or have thoughts about hurting yourself.

  • Do not stop using this medicine suddenly. Your doctor will need to slowly decrease your dose before you stop it completely.

  • Your doctor will do lab tests at regular visits to check on the effects of this medicine. Keep all appointments.

  • Keep all medicine out of the reach of children. Never share your medicine with anyone.

  • This medicine may make you dizzy or drowsy. Do not drive or do anything else that could be dangerous until you know how this medicine affects you.

Mysoline interactions

  • Tell your doctor if you are also taking birth control pills.

  • Tell your doctor if you use anything else that makes you sleepy. Some examples are allergy medicine, narcotic pain medicine, and alcohol.

  • This medicine can increase depression and thoughts of suicide. Tell your doctor right away if you start to feel more depressed or have thoughts about hurting yourself.

  • This medicine may make you dizzy or drowsy. Do not drive or do anything else that could be dangerous until you know how this medicine affects you.

  • Your doctor will do lab tests at regular visits to check on the effects of this medicine. Keep all appointments.

  • Do not stop using this medicine suddenly. Your doctor will need to slowly decrease your dose before you stop it completely.

  • Keep all medicine out of the reach of children. Never share your medicine with anyone.

Mysoline side effects

Serious Side Effects

  • Allergic reaction: Itching or hives, swelling in your face or hands, swelling or tingling in your mouth or throat, chest tightness, trouble breathing

  • Severe dizziness, sleepiness, or trouble walking

  • Thoughts of hurting yourself, depression, unusual changes in behavior

Less Serious Side Effects

  • Weakness, clumsiness

  • Dizziness