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What is the most important information I should know about
cyclobenzaprine?
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Do not take cyclobenzaprine if you have used an MAO inhibitor such
as isocarboxazid (Marplan), tranylcypromine (Parnate), phenelzine (Nardil),
or selegiline (Eldepryl, Emsam) within the past 14 days. Serious,
life-threatening side effects can occur if you take cyclobenzaprine
before the MAO inhibitor has cleared from your body. |
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You should not take cyclobenzaprine if you have recently had a heart
attack, or if you have a heart rhythm disorder, congestive heart failure,
heart block, or an overactive thyroid. |
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Do not stop taking cyclobenzaprine suddenly if you have been taking
it for longer than 1 week. Stopping suddenly may cause nausea, headache
and general discomfort. |
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Avoid drinking alcohol, which can increase some of the side effects
of cyclobenzaprine. |
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Cyclobenzaprine can cause side effects that may impair your thinking
or reactions. Be careful if you drive or do anything that requires you
to be awake and alert. |
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Cyclobenzaprine is a muscle relaxant. It works by blocking nerve
impulses (or pain sensations) that are sent to your brain. |
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Cyclobenzaprine is used to treat pain, tenderness, and limited
motion caused by muscle spasms. This medication is used together with
rest and physical therapy for short-term treatment (2 to 3 weeks). |
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Cyclobenzaprine may also be used for purposes other than those
listed in this medication guide. |
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What should I discuss with my doctor before taking cyclobenzaprine?
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Do not take cyclobenzaprine if you have used an MAO inhibitor such
as isocarboxazid (Marplan), tranylcypromine (Parnate), phenelzine (Nardil),
or selegiline (Eldepryl, Emsam) within the past 14 days. Serious,
life-threatening side effects can occur if you take cyclobenzaprine
before the MAO inhibitor has cleared from your body. |
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Do not use cyclobenzaprine if you have recently had a heart attack,
or if you have: |
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a heart rhythm disorder; |
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congestive heart failure; |
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Before using this medication, tell your doctor if you have: |
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problems with urination; |
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If you have any of these conditions, you may not be able to use
cyclobenzaprine, or you may need a dosage adjustment or special tests
during treatment. |
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FDA pregnancy category B. This medication is not expected to be
harmful to an unborn baby. Tell your doctor if you are pregnant or plan
to become pregnant during treatment. |
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It is not known whether cyclobenzaprine passes into breast milk or
if it could harm a nursing baby. Do not use this medication without
telling your doctor if you are breast-feeding a baby. |
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Do not give this medication to a child younger than 12 years old. |
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Older adults may be more sensitive to the side effects of this
medication. |
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How should I take cyclobenzaprine?
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Take this medication exactly as it was prescribed for you. Do not
take the medication in larger amounts, or take it for longer than
recommended by your doctor. |
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Take each dose with a full glass of water. |
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This medication is usually taken three times each day for a period
of 2 to 3 weeks. Do not use cyclobenzaprine for longer than 3 weeks
unless your doctor has told you to. |
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Do not stop taking cyclobenzaprine suddenly if you have been taking
it for longer than 1 week. Stopping suddenly may cause nausea, headache
and general discomfort. |
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This medication can cause you to have unusual results with certain
medical tests. Tell any doctor who treats you that you are using
cyclobenzaprine. |
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Store cyclobenzaprine at room temperature away from moisture and
heat. |
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What happens if I miss a dose?
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Take the missed dose as soon as you remember. If it is almost time
for your next dose, skip the missed dose and take the medicine at the
next regularly scheduled time. Do not take extra medicine to make
up the missed dose. |
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What happens if I overdose?
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Seek emergency medical attention if you think you have used too much
of this medicine. An overdose of cyclobenzaprine can be fatal. |
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Symptoms of a cyclobenzaprine overdose may include drowsiness, fast
heartbeat, tremors or shaking, slurred speech, confusion, nausea,
vomiting, hallucinations (seeing things), chest pain, or seizure (convulsions). |
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What should I avoid while taking cyclobenzaprine?
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Cyclobenzaprine can cause side effects that may impair your thinking
or reactions. Be careful if you drive or do anything that requires you
to be awake and alert. |
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Avoid using other medicines that make you sleepy (such as cold
medicine, pain medication, muscle relaxers, and medicine for seizures,
depression or anxiety). They can add to sleepiness caused by
cyclobenzaprine. |
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Avoid drinking alcohol, which can increase some of the side effects
of cyclobenzaprine. |
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What are the possible side effects of cyclobenzaprine?
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Get emergency medical help if you have any of these signs of an
allergic reaction: hives; difficulty breathing; swelling of your
face, lips, tongue, or throat. |
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Stop using cyclobenzaprine and call your doctor at once if you have
any of these serious side effects: |
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fast, pounding, or uneven heartbeats; |
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chest pain or heavy feeling, pain spreading to the arm or shoulder,
nausea, sweating, general ill feeling; |
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sudden numbness or weakness, especially on one side of the body; |
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sudden headache, confusion, problems with vision, speech, or balance; |
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feeling light-headed, fainting; |
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confusion, weakness, lack of coordination; |
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nausea, stomach pain, low fever, loss of appetite, dark urine,
clay-colored stools, jaundice (yellowing of the skin or eyes); |
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unusual thoughts or behavior, hallucinations (seeing things); or |
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easy bruising or bleeding, unusual weakness. |
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Continue using cyclobenzaprine and talk with your doctor if you have
any of these less serious side effects: |
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dry mouth, increased thirst; |
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drowsiness, dizziness, tired feeling; |
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feeling nervous or irritable; |
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heartburn, loss of appetite, stomach pain, nausea, vomiting; |
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diarrhea, constipation, gas; or |
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sore throat, cold symptoms. |
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Side effects other than those listed here may also occur. Talk to
your doctor about any side effect that seems unusual or that is
especially bothersome. |
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What other drugs will affect cyclobenzaprine?
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Before taking cyclobenzaprine, tell your doctor if you are using any
drugs that make you sleepy (such as alcohol, cold medicine, pain
medication, muscle relaxers, and medicine for seizures, depression or
anxiety). |
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Medications that can increase drowsiness caused by cyclobenzaprine
include: |
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antidepressants such as amitriptyline (Elavil), clomipramine (Anafranil),
desipramine (Norpramin), imipramine (Tofranil), or nortriptyline (Pamelor); |
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antidepressants such as amitriptyline (Elavil), citalopram (Celexa),
clomipramine (Anafranil), desipramine (Norpramin), escitalopram (Lexapro),
fluoxetine (Prozac, Sarafem), fluvoxamine (Luvox), imipramine (Tofranil),
nortriptyline (Pamelor), paroxetine (Paxil), or sertraline (Zoloft); |
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narcotic pain medicine such as meperidine (Demerol), morphine (MS
Contin, MSIR), propoxyphene (Darvon, Darvocet), hydrocodone (Lorcet,
Vicodin), oxycodone (Percocet, Percodan), fentanyl (Duragesic), and
codeine (Tylenol #3, and prescription cough medicines); |
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sedatives such as phenobarbital (Solfoton, Luminal), amobarbital (Amytal),
and secobarbital (Seconal); |
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phenothiazines such as chlorpromazine (Thorazine), fluphenazine (Prolixin),
mesoridazine (Serentil), perphenazine (Trilafon), prochlorperazine (Compazine),
thioridazine (Mellaril), and trifluoperazine (Stelazine); or |
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tranquilizers such as diazepam (Valium), alprazolam (Xanax),
lorazepam (Ativan), or clorazepate (Tranxene). |
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If you are using any of these drugs, you may not be able to use
cyclobenzaprine, or you may need dosage adjustments or special tests
during treatment. |
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There may be other drugs not listed that can affect cyclobenzaprine.
Tell your doctor about all the prescription and over-the-counter
medications you use. This includes vitamins, minerals, herbal products,
and drugs prescribed by other doctors. Do not start using a new
medication without telling your doctor. |
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Where can I get more information?
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Your pharmacist has additional information about cyclobenzaprine
written for health professionals that you may read. |
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Remember, keep this and all other medicines out of the reach of
children, never share your medicines with others, and use this
medication only for the indication prescribed. |
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Every effort has been made to ensure that the information provided
by Cerner Multum, Inc. ('Multum') is accurate, up-to-date, and complete,
but no guarantee is made to that effect. Drug information contained
herein may be time sensitive. Multum information has been compiled for
use by healthcare practitioners and consumers in the United States and
therefore Multum does not warrant that uses outside of the United States
are appropriate, unless specifically indicated otherwise. Multum's drug
information does not endorse drugs, diagnose patients or recommend
therapy. Multum's drug information is an informational resource designed
to assist licensed healthcare practitioners in caring for their patients
and/ or to serve consumers viewing this service as a supplement to, and
not a substitute for, the expertise, skill, knowledge and judgment of
healthcare practitioners. The absence of a warning for a given drug or
drug combination in no way should be construed to indicate that the drug
or drug combination is safe, effective or appropriate for any given
patient. Multum does not assume any responsibility for any aspect of
healthcare administered with the aid of information Multum provides. The
information contained herein is not intended to cover all possible uses,
directions, precautions, warnings, drug interactions, allergic reactions,
or adverse effects. If you have questions about the drugs you are taking,
check with your doctor, nurse or pharmacist. |
Copyright 1996-2006 Cerner Multum, Inc. Version: 3.04. Revision date: 6/
23/ 06. |