- This drug may cause mental problems or make them worse. It may also cause very bad problems with how you act. Ideas of killing yourself or someone else, forceful actions, fury, anxiety, and anger have happened with use. These problems have happened in people with and without a history of mental or mood problems. Watch people who take this drug closely. If you think you have any of these problems, call your doctor right away. Call your doctor right away if you have any other signs like low mood (depression), nervousness, restlessness, grouchiness, panic attacks, or changes in mood or actions are new or worse.
- It is used to help control certain kinds of seizures.
- If you have an allergy to perampanel or any other part of this drug.
- If you are allergic to any drugs like this one, any other drugs, foods, or other substances. Tell your doctor about the allergy and what signs you had, like rash; hives; itching; shortness of breath; wheezing; cough; swelling of face, lips, tongue, or throat; or any other signs.
- If you have any of these health problems: Kidney disease or liver disease.
- If you are taking any of these drugs: Rifampin or St. John’s wort.
- Tell all of your health care providers that you take this drug. This includes your doctors, nurses, pharmacists, and dentists.
- Avoid driving and doing other tasks or actions that call for you to be alert until you see how this drug affects you.
- Avoid drinking alcohol while taking this drug.
- Talk with your doctor before you use other drugs and natural products that slow your actions.
- The chance of falling is raised with this drug. Falls may lead to very bad problems like head injury and broken bones. The chance of falling is higher in older people. Talk with the doctor.
- If you are 65 or older, use this drug with care. You could have more side effects.
- Birth control pills and other hormone-based birth control products that have levonorgestrel in them may not work as well to prevent pregnancy. Use some other kind of birth control also like a condom if you are using a birth control product with levonorgestrel in it and for 1 month after your last dose of this drug. If you have questions, talk with your doctor.
- Tell your doctor if you are pregnant or plan on getting pregnant. You will need to talk about the benefits and risks of using this drug while you are pregnant.
- Tell your doctor if you are breast-feeding. You will need to talk about any risks to your baby.
- Signs of an allergic reaction, like rash; hives; itching; red, swollen, blistered, or peeling skin with or without fever; wheezing; tightness in the chest or throat; trouble breathing or talking; unusual hoarseness; or swelling of the mouth, face, lips, tongue, or throat.
- Feeling confused.
- Hallucinations (seeing or hearing things that are not there).
- Memory problems or loss.
- Change in balance.
- Very bad dizziness or passing out.
- Trouble walking.
- If seizures are new or worse after starting this drug.
- Upset stomach or throwing up.
- Feeling sleepy.
- Feeling tired or weak.
- Back pain.
- Weight gain.
- Belly pain.
- Take this drug at bedtime.
- To gain the most benefit, do not miss doses.
- Keep taking this drug as you have been told by your doctor or other health care provider, even if you feel well.
- Do not stop taking this drug all of a sudden without calling your doctor. You may have a greater risk of seizures. If you need to stop this drug, you will want to slowly stop it as ordered by your doctor.
- Shake well before use.
- Measure liquid doses carefully. Use the measuring device that comes with this drug. If there is none, ask the pharmacist for a device to measure this drug.
- Skip the missed dose and go back to your normal time.
- Do not take 2 doses at the same time or extra doses.
- If you miss 2 or more days of this drug, call your doctor to find out how to restart.
- Store at room temperature.
- Store in a dry place. Do not store in a bathroom.
- Keep all drugs in a safe place. Keep all drugs out of the reach of children and pets.
- Check with your pharmacist about how to throw out unused drugs.
- Do not freeze.
- Throw away any part not used 90 days after opening.
- If your symptoms or health problems do not get better or if they become worse, call your doctor.
- Do not share your drugs with others and do not take anyone else’s drugs.
- Keep a list of all your drugs (prescription, natural products, vitamins, OTC) with you. Give this list to your doctor.
- Talk with the doctor before starting any new drug, including prescription or OTC, natural products, or vitamins.
- Some drugs may have another patient information leaflet. If you have any questions about this drug, please talk with your doctor, nurse, pharmacist, or other health care provider.
- If you think there has been an overdose, call your poison control center or get medical care right away. Be ready to tell or show what was taken, how much, and when it happened.