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CHLORPHENIRAMINE; DEXTROMETHORPHAN (klor fen IR a meen; dex troe meth OR fan) is a combination of an antihistamine and a cough suppressant. It is used to treat the symptoms of a cold. This medicine will not treat an infection.
Take this medicine by mouth with a glass of water. Follow the directions on the package label. Take your medicine at regular intervals. Do not take it more often than directed.
Talk to your pediatrician regarding the use of this medicine in children. While this drug may be prescribed for children as young as 12 years old for selected conditions, precautions do apply.
Side effects that you should report to your doctor or health care professional as soon as possible:
allergic reactions like skin rash, itching or hives, swelling of the face, lips, or tongue
changes in vision
confused, faint, lightheaded
fast, irregular heartbeat
trouble passing urine or change in the amount of urine
unusually weak or tired
Side effects that usually do not require medical attention (report to your doctor or health care professional if they continue or are bothersome):
dry mouth, nose, throat
stomach upset, nausea
Do not take this medicine with any of the following medications:
MAOIs like Carbex, Eldepryl, Marplan, Nardil, and Parnate
This medicine may also interact with the following medications:
barbiturates, like phenobarbital
medicines for sleep
other medicines for cold, cough or allergy
some herbal or nutritional supplements like St. John's Wort
If you miss a dose, take it as soon as you can. If it is almost time for your next dose, take only that dose. Do not take double or extra doses.
Keep out of the reach of children.
Store at room temperature between 15 and 30 degrees C (59 and 86 degrees F). Throw away any unused medicine after the expiration date.
They need to know if you have any of these conditions:
long lasting (chronic) cough
other health condition
taken an MAOI like Carbex, Eldepryl, Marplan, Nardil, or Parnate in last 14 days
an unusual or allergic reaction to chlorpheniramine, dextromethorphan, other medicines, foods, dyes, or preservatives
pregnant or trying to get pregnant
Tell your doctor or healthcare professional if your symptoms do not start to get better or if they get worse. See the doctor if the symptoms last more than 7 days or if a fever, rash, or long lasting headache is also present. Coughs that last more than 7 days or come back can be a sign of a serious health condition.
You may get drowsy or dizzy. Do not drive, use machinery, or do anything that needs mental alertness until you know how this medicine affects you. Do not stand or sit up quickly, especially if you are an older patient. This reduces the risk of dizzy or fainting spells. Alcohol may interfere with the effect of this medicine. Avoid alcoholic drinks.
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