Adult Medication

Brand Names: US


Brand Names: Canada

Apo-Clonazepam; Clonapam; Clonazepam-R; CO Clonazepam; Dom-Clonazepam; Dom-Clonazepam-R; Mylan-Clonazepam; PHL-Clonazepam; PHL-Clonazepam-R; PMS-Clonazepam; PMS-Clonazepam-R; PRO-Clonazepam; ratio-Clonazepam; Riva-Clonazepam; Rivotril; Sandoz-Clonazepam; Teva-Clonazepam; ZYM-Clonazepam


  • This drug 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 this drug 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.

What is this drug used for?

  • 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 this drug?

  • If you have an allergy to clonazepam 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: Glaucoma or liver disease.
  • If you are breast-feeding. Do not breast-feed while you take this drug.
This is not a list of all drugs or health problems that interact with this drug.
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 this drug 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 this drug?

All products:

  • Tell all of your health care providers that you take this drug. This includes your doctors, nurses, pharmacists, and dentists.
  • This drug may be habit-forming with long-term use.
  • Do not stop taking this drug all of a sudden without calling your doctor. You may have a greater risk of side effects. If you need to stop this drug, you will want to slowly stop it as ordered by your doctor.
  • Have your blood work checked if you are on this drug 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 this drug affects you.
  • If you have had seizures in the past, this drug 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 this drug.
  • Avoid drinking alcohol while taking this drug.
  • Talk with your doctor before you use other drugs and natural products that slow your actions.
  • If you are 65 or older, use this drug with care. You could have more side effects.
  • This drug may cause harm to the unborn baby if you take it while you are pregnant. If you are pregnant or you get pregnant while taking this drug, call your doctor right away.
For seizures:
  • Do not change the dose or stop this drug. This could cause seizures. Talk with your doctor.

Oral-disintegrating tablet:

  • If you have phenylketonuria (PKU), talk with your doctor. Some products have phenylalanine.

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 this drug:

  • 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.
  • Shortness of breath.
  • Change in balance.
  • Feeling confused.
  • Feeling very tired or weak.
  • Memory problems or loss.
  • Patients who take this drug 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 this drug.

What are some other side effects of this drug?

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:
  • Feeling sleepy.
  • Hard stools (constipation).
  • Drooling.
  • Dizziness.
  • Feeling tired or weak.
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 your national health agency.

How is this drug best taken?

Use this drug as ordered by your doctor. Read all information given to you. Follow all instructions closely.

All products:

  • Take with or without food. Take with food if it causes an upset stomach.


  • Swallow whole with a full glass of water.

Oral-disintegrating tablet:

  • Do not push the tablet out of the foil when opening. Use dry hands to take it from the foil. Place on your tongue and let it melt. Water is not needed. Do not swallow it whole. Do not chew, break, or crush it.

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.

How do I store and/or throw out this drug?

All products:

  • 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.

Oral-disintegrating tablet:

  • Store in foil pouch until ready for use.
  • Use oral-disintegrating tablet right after opening. Throw away any part of opened pouch that is not used.

General drug facts

  • 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.

Consumer Information Use and Disclaimer

This information should not be used to decide whether or not to take this medicine or any other medicine. Only the healthcare provider has the knowledge and training to decide which medicines are right for a specific patient. This information does not endorse any medicine as safe, effective, or approved for treating any patient or health condition. This is only a brief summary of general information about this medicine. It does NOT include all information about the possible uses, directions, warnings, precautions, interactions, adverse effects, or risks that may apply to this medicine. This information is not specific medical advice and does not replace information you receive from the healthcare provider. You must talk with the healthcare provider for complete information about the risks and benefits of using this medicine.

Last Reviewed Date



© 2016 Wolters Kluwer Clinical Drug Information, Inc. and its affiliates and/or licensors. All rights reserved.