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CARBETAPENTANE; GUAIFENESIN; PHENYLEPHRINE (kar bay ta PEN tane; gwye FEN e sin; fen il EF rin) is a combination of a cough suppressant, expectorant, and decongestant. It is used to relieve cough and congestion from a cold, the flu, sinus congestion, and bronchitis. This medicine will not treat an infection.
Take this medicine by mouth. Follow the directions on the prescription label. Shake well before use. Use a specially marked spoon or container to measure each dose. Ask your pharmacist if you do not have one. Household spoons are not accurate. Take your medicine at regular intervals. Do not take your medicine more often than directed.
Talk to your pediatrician regarding the use of this medicine in children. Special care may be needed.
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
confusion, excitability, or nervousness
fast, irregular heartbeat
high or low blood pressure
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):
Do not take this medicine with any of the following medications:
ergot medications for headaches or some procedures
MAOIs like Carbex, Eldepryl, Marplan, Nardil, and Parnate
stimulant medicines for attention disorders, weight loss, or to stay awake
This medicine may also interact with the following medications:
medicines for chest pain, heart disease, high blood pressure, or heart rhythm problems
medicines that cause drowsiness
other medicines for allergies or colds
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:
difficulty passing urine
heart or artery disease
high blood pressure
taking medicines called MAOIs like Nardil, Parnate, Marplan, Eldepryl
an unusual or allergic reaction to carbetapentane, guaifenesin, phenylephrine, 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. If you have a fever, skin rash, or persistent headache as well as a cough, see your doctor or health care professional.
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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