Chlorphenesin is a muscle relaxant. It works by blocking nerve impulses (or pain
sensations) that are sent to your brain.
Chlorphenesin is used, along with rest and physical therapy, to treat injuries and other
painful muscular conditions.
Chlorphenesin is not commercially available in the United States.
Chlorphenesin may also be used for purposes other than those listed in this medication
guide.
What should I discuss with my healthcare provider before taking chlorphenesin?
Before taking chlorphenesin, tell your doctor if you have liver disease. You may need
a lower dose or special monitoring during therapy.
It is not known whether chlorphenesin will harm an unborn baby. Do not take
chlorphenesin without first talking to your doctor if you are pregnant.
It is also not known whether chlorphenesin passes into breast milk. Do not take
chlorphenesin without first talking to your doctor if you are breast-feeding a baby.
Chlorphenesin is not approved for use in children.
How should I take chlorphenesin?
Take chlorphenesin exactly as directed by your doctor. If you do not understand these
directions, ask your pharmacist, nurse, or doctor to explain them to you.
Take each dose with a full glass of water.
Store chlorphenesin at room temperature away from moisture and heat.
What happens if I miss a dose of chlorphenesin?
Take the missed dose as soon as you remember. However, if it is almost time for your
next dose, skip the missed dose and take only your next regularly scheduled dose.
Do
not
take a double dose of this medication.
Where can I get more information about chlorphenesin?
Your pharmacist has information about chlorphenesin written for health professionals that you may read.
What are the possible side effects of chlorphenesin?
Stop taking chlorphenesin and seek emergency medical attention if you experience
an allergic reaction (difficulty breathing; closing of your throat; swelling of your lips, tongue, or
face; or hives).
Other, less serious side effects may be more likely to occur. Continue to take
chlorphenesin and talk to your doctor if you experience
drowsiness, dizziness, or confusion;
headache;
nervousness or insomnia; or
nausea or upset stomach.
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.
What is the most important information I should know about chlorphenesin?
Chlorphenesin is not commercially available in the United States.
Use caution when driving, operating machinery, or performing other hazardous
activities. Chlorphenesin may cause dizziness or drowsiness. If you experience dizziness or
drowsiness, avoid these activities.
Use alcohol cautiously. Alcohol may increase drowsiness and dizziness while you are
taking chlorphenesin.
What should I avoid while taking chlorphenesin?
Use caution when driving, operating machinery, or performing other hazardous
activities. Chlorphenesin may cause dizziness or drowsiness. If you experience dizziness or
drowsiness, avoid these activities.
Use alcohol cautiously. Alcohol may increase drowsiness and dizziness while you are
taking chlorphenesin.
What other drugs will affect chlorphenesin?
Many drugs can increase the effects of chlorphenesin, which can lead to heavy sedation.
Before taking this medication, tell your doctor if you are taking any of the following medicines:
antihistamines such as brompheniramine (Dimetane, Bromfed,
others), chlorpheniramine (Chlor-Trimeton, Teldrin, others), azatadine (Optimine), clemastine
(Tavist), and many others;
narcotics (pain killers) such as meperidine (Demerol),
morphine (MS Contin, MSIR, others), propoxyphene (Darvon, Darvocet), hydrocodone (Lorcet,
Vicodin), oxycodone (Percocet, Percodan), fentanyl (Duragesic), and codeine (Fiorinal,
Fioricet, Tylenol #3, others);
sedatives such as phenobarbital (Solfoton, Luminal),
amobarbital (Amytal), and secobarbital (Seconal);
phenothiazines such as chlorpromazine (Thorazine),
fluphenazine (Prolixin), mesoridazine (Serentil), perphenazine (Trilafon), prochlorperazine
(Compazine), thioridazine (Mellaril), and trifluoperazine (Stelazine); or
antidepressants such as doxepin (Sinequan), imipramine
(Tofranil), nortriptyline (Pamelor), fluoxetine (Prozac), paroxetine (Paxil), sertraline (Zoloft),
phenelzine (Nardil), and tranylcypromine (Parnate).
Drugs other than those listed here may also interact with
chlorphenesin. Talk to your doctor and pharmacist before taking any prescription or
over-the-counter medicines.
What happens if I have an overdose of chlorphenesin?
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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up-to-date, and complete, but no guarantee is made to that effect. Drug information contained herein may be time sensitive. Multum
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warrant that uses outside of the United States are appropriate, unless specifically indicated otherwise. Multum's drug information does
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given patient. Multum does not assume any responsibility for any aspect of healthcare administered with the aid of information
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interactions, allergic reactions, or adverse effects. If you have questions about the drugs you are taking, check with your doctor, nurse
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Content provided by Multum - Last Updated 11/10/2009