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Klonopin

Generic Name: Clonazepam Tablets (kloe NAZ e pam)
Brand Name: Klonopin

Medically reviewed on Sep 5, 2018

Warning

  • This medicine is a benzodiazepine. The use of a benzodiazepine drug along with opioid drugs has led to very bad side effects. Side effects that have happened include slowed or trouble breathing and death. Opioid drugs include drugs like codeine, oxycodone, and morphine. Opioid drugs are used to treat pain and some are used to treat cough. Talk with the doctor.
  • If you are taking Klonopin (clonazepam tablets) with an opioid drug, get medical help right away if you feel very sleepy or dizzy; if you have slow, shallow, or trouble breathing; or if you pass out. Caregivers or others need to get medical help right away if the patient does not respond, does not answer or react like normal, or will not wake up.

Uses of Klonopin:

  • It is used to treat seizures.
  • It is used to treat panic attacks.
  • It may be given to you for other reasons. Talk with the doctor.

What do I need to tell my doctor BEFORE I take Klonopin?

  • If you have an allergy to clonazepam or any other part of Klonopin (clonazepam tablets).
  • 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: Glaucoma or liver disease.
  • If you are breast-feeding. Do not breast-feed while you take Klonopin (clonazepam tablets).

This is not a list of all drugs or health problems that interact with Klonopin (clonazepam tablets).

Tell your doctor and pharmacist about all of your drugs (prescription or OTC, natural products, vitamins) and health problems. You must check to make sure that it is safe for you to take Klonopin (clonazepam tablets) with all of your drugs and health problems. Do not start, stop, or change the dose of any drug without checking with your doctor.

What are some things I need to know or do while I take Klonopin?

For all uses of Klonopin (clonazepam tablets):

  • Tell all of your health care providers that you take Klonopin (clonazepam tablets). This includes your doctors, nurses, pharmacists, and dentists.
  • This medicine may be habit-forming with long-term use.
  • Do not stop taking Klonopin (clonazepam tablets) all of a sudden without calling your doctor. You may have a greater risk of side effects. If you need to stop Klonopin (clonazepam tablets), you will want to slowly stop it as ordered by your doctor.
  • Have your blood work checked if you are on Klonopin (clonazepam tablets) for a long time. Talk with your doctor.
  • Avoid driving and doing other tasks or actions that call for you to be alert until you see how Klonopin (clonazepam tablets) affects you.
  • If you have had seizures in the past, Klonopin (clonazepam tablets) may cause you to pass out. Use with care. Do not do activities that may be unsafe to you or others if you pass out, like driving or swimming.
  • If you have lung disease, talk with your doctor. You may be more sensitive to Klonopin (clonazepam tablets).
  • Avoid drinking alcohol while taking Klonopin (clonazepam tablets).
  • Talk with your doctor before you use other drugs and natural products that slow your actions.
  • Talk with your doctor if Klonopin (clonazepam tablets) stops working well. Do not take more than ordered.
  • If you are taking phenytoin, talk with your doctor. You may need to have your blood work checked more closely while you are taking it with Klonopin (clonazepam tablets).
  • If you are 65 or older, use Klonopin (clonazepam tablets) with care. You could have more side effects.
  • This medicine may cause harm to the unborn baby if you take it while you are pregnant, especially in the first trimester.
  • Taking Klonopin (clonazepam tablets) late in pregnancy may raise the chance of breathing or feeding problems, low body temperature, or withdrawal symptoms in the newborn. Talk with the doctor.
  • If you are pregnant or you get pregnant while taking Klonopin (clonazepam tablets), call your doctor right away.

For seizures:

  • Do not change the dose or stop Klonopin (clonazepam tablets). This could cause seizures. Talk with your doctor.

How is this medicine (Klonopin) best taken?

Use Klonopin (clonazepam tablets) as ordered by your doctor. Read all information given to you. Follow all instructions closely.

  • Swallow whole with a full glass of water.

What do I do if I miss a dose?

  • Take a missed dose as soon as you think about it.
  • If it is close to the time for your next dose, skip the missed dose and go back to your normal time.
  • Do not take 2 doses at the same time or extra doses.

What are some side effects that I need to call my doctor about right away?

WARNING/CAUTION: Even though it may be rare, some people may have very bad and sometimes deadly side effects when taking a drug. Tell your doctor or get medical help right away if you have any of the following signs or symptoms that may be related to a very bad side effect:

For all uses of Klonopin (clonazepam tablets):

  • 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, swallowing, or talking; unusual hoarseness; or swelling of the mouth, face, lips, tongue, or throat.
  • Shortness of breath.
  • Change in balance.
  • Feeling confused.
  • Feeling very tired or weak.
  • Memory problems or loss.
  • Period (menstrual) pain.
  • Bad dreams.
  • Hallucinations (seeing or hearing things that are not there).
  • Patients who take Klonopin (clonazepam tablets) may be at a greater risk of having thoughts or actions of suicide. The risk may be greater in people who have had these thoughts or actions in the past. Call the doctor right away if signs like low mood (depression), nervousness, restlessness, grouchiness, panic attacks, or changes in mood or actions are new or worse. Call the doctor right away if any thoughts or actions of suicide occur.

For seizures:

  • If seizures are new or worse after starting Klonopin (clonazepam tablets).

What are some other side effects of Klonopin?

All drugs may cause side effects. However, many people have no side effects or only have minor side effects. Call your doctor or get medical help if any of these side effects or any other side effects bother you or do not go away:

These are not all of the side effects that may occur. If you have questions about side effects, call your doctor. Call your doctor for medical advice about side effects.

You may report side effects to the FDA at 1-800-FDA-1088. You may also report side effects at http://www.fda.gov/medwatch.

If OVERDOSE is suspected:

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.

How do I store and/or throw out Klonopin?

  • 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.
  • Throw away unused or expired drugs. Do not flush down a toilet or pour down a drain unless you are told to do so. Check with your pharmacist if you have questions about the best way to throw out drugs. There may be drug take-back programs in your area.

Consumer information use

  • 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.
  • This medicine comes with an extra patient fact sheet called a Medication Guide. Read it with care. Read it again each time Klonopin (clonazepam tablets) is refilled. If you have any questions about Klonopin (clonazepam tablets), please talk with the doctor, 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.

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

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