Primidone Side Effects, Dosage, Uses & More
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Primidone Side Effects, Dosage, Uses & More


Polemeds.orgPrimidone
8.17.2017 | Natalie Carter
Primidone
Primidone Side Effects, Dosage, Uses & More

You shouldn’t drive, use machinery, or do other tasks that require alertness until you know how this drug affects you. Primidone may cause drowsiness, and may slow your thinking and movements.

This means you may need to take it with other drugs used to prevent seizures. Primidone may be used as part of a combination therapy.

Symptoms include:. Primidone can cause a severe allergic reaction.

You should have fewer seizures.

l your doctor if your seizures get worse or if you have any new types of seizures.

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If you haven’t had treatment for seizures, follow this dosing schedule:

Your doctor may also check your:

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Medically reviewed by Creighton University, Center for Drug Information and Evidence-Based Practice on November 9, 2016.

Who shouldn’t take this drug See Details.

All possible dosages and forms may not be included here. Your dose, form, and how often you take it will depend on: Brand: Mysoline Generic: primidone.

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That means two things:. Primidone is a category D pregnancy drug.

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You should not take primidone if you’re allergic to phenobarbital or if you have the genetic disorder porphyria.

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If you’re pregnant or plan to become pregnant, this drug may harm your unborn baby. l your doctor right away if you become pregnant while taking primidone.

Your medication may not work as well or may stop working compley. For this drug to work well, a certain amount needs to be in your body at all times.

Primidone can pass into breast milk and may cause serious effects in a breastfeeding child.

Your doctor may do a test two times per year to check if you have the right levels of this drug in your blood. For people over 5 years of age, your blood primidone levels should be between 5–12 micrograms per milliliter.

This drug may cause suicidal thoughts or actions in a very small number of people, about 1 in 500. Call you doctor right away if you have any of these symptoms, especially if they are new, worse, or worry you:.

Follow the same primidone schedule while slowly decreasing your other medications.

This means your doctor will need to get approval from your insurance company before your insurance company will pay for the prescription. Many insurance companies require a prior authorization for this drug.

This drug may cause suicidal thoughts or actions in a very small number of people, about 1 in 500. Call you doctor right away if you have any thoughts about suicide, especially if they are new, worse, or worry you.

You could have dangerous levels of the drug in your body. You could also have extreme drowsiness, nausea, vomiting, or poor muscle control. Or you could become confused or slip into a coma. Your breathing could slow down so much that you stop breathing.

If you’re already taking other seizure medicines:

Primidone is an oral drug that’s used to treat certain types of seizures.

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A class of drugs refers to medications that work similarly. They are often used to treat similar conditions. Primidone belongs to a class of drugs called anticonvulsant drugs.

Common side effects include walking problems and dizziness. These side effects tend to go away after your body gets used to the medicine or after the dose is reduced.

Stopping primidone suddenly may cause serious problems, such as having more seizures, or seizures that don’t stop. If you don’t take primidone at all, you may keep having seizures.

Some may be more suitable for you than others. There are other drugs available to treat your condition. Show Sources. Talk to your doctor about possible alternatives.

Warnings. People with liver problems: If you have liver problems, your doctor may start you on a lower dose and monitor you more closely.

feelings of dizziness, spinning, or swaying (vertigo).

Older adults may process drugs more slowly. A normal adult dose may cause levels of this drug to be higher than normal in your body. If you’re a senior, you may need a lower dose or a different schedule.

Primidone is a prescription drug. It’s available as an oral tablet.

The total daily dose for primidone shouldn’t be more than 2 grams (2,000 mg).

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You should not take primidone if you have the genetic disorder called porphyria. (This is a rare condition that mainly affects the skin or nervous system.).

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The exact way that primidone works to prevent seizures is not known.

Follow this dosing schedule:

Primidone comes with serious risks if you don’t take it as prescribed.

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Primidone is used alone or with other medicines to treat people with:

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decreased blood cell counts, with symptoms such as:

Primidone can cause severe sleepiness, especially when you first start taking the medicine.

When traveling with your medication:

Taking it with food may help to decrease stomach upset.

If you become pregnant while taking primidone, talk to your doctor about registering with the North American Antiepileptic Drug (NAAED) Pregnancy Registry. The purpose of this registry is to collect information about the safety of seizure medications used during pregnancy.

Taking it a second time after an allergic reaction could be fatal. Don’t take this drug again if you’ve ever had an allergic reaction to it or phenobarbital before.

Ask your doctor to l you about the specific harm that may be done to the fetus. This drug should be only used if the potential risk to the fetus is acceptable given the drug’s potential benefit. Primidone may harm your pregnancy if you take it while pregnant. Talk to your doctor if you’re pregnant or planning to become pregnant.

You and your doctor may need to decide if you’ll take primidone or breastfeed.

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If you have an allergic reaction, call your doctor right away. If your symptoms are severe, call 9-1-1 or go to the nearest emergency room.

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If you’re already taking other seizure medicines:

Never try to catch up by taking two doses at once. If it’s just a few hours before the time for your next dose, then wait and only take one dose at that time. If you forget to take your dose, take it as soon as you remember. This can cause dangerous side effects.

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If you experience any of these serious side effects, call your doctor right away. If your symptoms are potentially life-threatening or if you think you’re experiencing a medical emergency, call 9-1-1.

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You should be off of your other seizure medications in less than two weeks. Follow the same primidone schedule while slowly decreasing your other medications.

If you think that you’ve taken too much primidone, call your doctor or local poison control center, or go to the emergency room right away.

You shouldn’t take primidone if you’re allergic to phenobarbital or have the genetic disorder called porphyria.

Symptoms include:. thoughts or behaviors of hurting yourself.

To make sure you have the right level of primidone in your blood, your doctor may check to see if your blood primidone levels are between 5–12 micrograms per milliliter.

Content developed in collaboration with University of Illinois-Chicago, Drug Information Group.

NOTE: Healthline isn't a healthcare provider. We can't respond to health questions or give you medical advice.

The most common side effects of primidone include:

If you haven’t had treatment for seizures, follow this dosing schedule:

Taking this drug with alcohol can make some of the drug’s side effects worse. You shouldn’t drink alcohol while taking primidone. These include sleepiness or dizziness.

It’s also available as a brand-name drug called Mysoline. In some cases, they may not be available in every strength or form as the brand-name version. Talk to your doctor to see if the generic version will work for you. Primidone is a generic drug. Generic drugs usually cost less.

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The side effects tend to go away after your body gests used to the medicine or after the dose is reduced. If they’re more severe or don’t go away, talk to your doctor or pharmacist.

However, it can still interact with other medications, herbs, or vitamins you might be taking. There are no formal studies done to see which drugs interact with primidone. If you’re curious about how this drug might interact with something else you’re taking, talk to your doctor or pharmacist. That’s why your doctor should manage all of your medications carefully. Be sure to talk to your healthcare provider before taking primidone with other drugs that make you sleepy or dizzy.

People with kidney problems: If you have moderate to severe kidney problems, your doctor may instruct you to decrease the dose by only taking the drug 2–3 times per day. If you have severe kidney problems, you may be instructed to take the drug only 1–2 times per day.

lack of muscle control, which can cause problems with walking and moving.

Primidone