Clonazepam is used alone or in combination with other medications to control certain types of seizures. It is also used to relieve panic attacks (sudden, unexpected attacks of extreme fear and worry about these attacks). Clonazepam is in a class of medications called benzodiazepines. It works by decreasing abnormal electrical activity in the brain.
Clonazepam comes as a tablet and an orally disintegrating tablet (tablet that dissolves quickly in the mouth) to take by mouth. It usually is taken one to three times a day with or without food. Take clonazepam at around the same time(s) every day. Follow the directions on your prescription label carefully, and ask your doctor or pharmacist to explain any part you do not understand.
Do not try to push the orally disintegrating tablet through the foil. Instead, use dry hands to peel back the foil packaging. Immediately take out the tablet and place it in your mouth. The tablet will quickly dissolve and can be swallowed with or without liquid.
Your doctor will probably start you on a low dose of clonazepam and gradually increase your dose, not more often than once every 3 days.
Clonazepam can be habit-forming. Do not take a larger dose, take it more often, or take it for a longer period of time or in a different way than prescribed by your doctor. Take clonazepam exactly as directed. Do not take more or less of it or take it more often than prescribed by your doctor.
Clonazepam may help control your condition, but will not cure it. It may take a few weeks or longer before you feel the full benefit of clonazepam. Continue to take clonazepam even if you feel well. Do not stop taking clonazepam without talking to your doctor, even if you experience side effects such as unusual changes in behavior or mood, If you suddenly stop taking clonazepam, you may experience withdrawal symptoms such as new or worsening seizures, hallucinating (seeing things or hearing voices that do not exist), changes in behavior, sweating, uncontrollable shaking of a part of your body, stomach or muscle cramps, anxiety, or difficulty falling asleep or staying asleep. Your doctor will probably decrease your dose gradually.
Clonazepam is also used to treat symptoms of akathisia (restlessness and a need for constant movement) that may occur as a side effect of treatment with antipsychotic medications (medications for mental illness) and to treat acute catatonic reactions (state in which a person does not move or speak at all or moves or speaks abnormally). Talk to your doctor about the possible risks of using this medication for your condition.
This medication is sometimes prescribed for other uses; ask your doctor or pharmacist for more information.
talk to your doctor about the risks and benefits of taking this medication if you are 65 years of age or older. Older adults should receive low doses of clonazepam because higher doses may not work better and may cause serious side effects.
Talk to your doctor about eating grapefruit and drinking grapefruit juice while taking this medicine.
Take the missed dose as soon as you remember it. However, if it is almost time for the next dose, skip the missed dose and continue your regular dosing schedule. Do not take a double dose to make up for a missed one.
problems with coordination
difficulty thinking or remembering
muscle or joint pain
changes in sex drive or ability
swelling of the eyes, face, lips, tongue, or throat
difficulty breathing or swallowing
If you experience a serious side effect, you or your doctor may send a report to the Food and Drug Administration's (FDA) MedWatch Adverse Event Reporting program online [at http://www.fda.gov/Safety/MedWatch] or by phone [1-800-332-1088].
Keep this medication in the container it came in, tightly closed, and out of reach of children. Store it at room temperature and away from excess heat and moisture (not in the bathroom). Throw away any medication that is outdated or no longer needed. Talk to your pharmacist about the proper disposal of your medication.
In case of overdose, call your local poison control center at 1-800-222-1222. If the victim has collapsed or is not breathing, call local emergency services at 911.
coma (loss of consciousness for a period of time)
Keep all appointments with your doctor and the laboratory. Your doctor will order certain lab tests to check your response to clonazepam.
Do not let anyone else take your medication. Clonazepam is a controlled substance. Prescriptions may be refilled only a limited number of times; ask your pharmacist if you have any questions.
It is important for you to keep a written list of all of the prescription and nonprescription (over-the-counter) medicines you are taking, as well as any products such as vitamins, minerals, or other dietary supplements. You should bring this list with you each time you visit a doctor or if you are admitted to a hospital. It is also important information to carry with you in case of emergencies.
Last Revised - 07/01/2010
AHFS® Consumer Medication Information. © Copyright, 2014. The American Society of Health-System Pharmacists, Inc., 7272 Wisconsin Avenue, Bethesda, Maryland. All Rights Reserved. Duplication for commercial use must be authorized by ASHP.