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DEXTROMETHORPHAN; GUAIFENESIN; PSEUDOEPHEDRINE (dex troe meth OR fan; gwye FEN e sin; soo doe e FED rin) is a combination of a cough suppressant, an expectorant, and a decongestant. It used to provide relief from cough and congestion. This medicine will not treat an infection.
Take this medicine by mouth with a glass of water. Follow the directions on the prescription label. Use a specially marked spoon or container to measure your medicine. Household spoons are not accurate. If this medicine upsets your stomach, take with food or milk. Take your doses 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.
Patients over 60 years old may have a stronger reaction and need a smaller dose.
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
difficulty passing urine
fast or irregular heartbeat
fear, anxiety, restless, tremor
high blood pressure
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):
loss of appetite
stomach upset, nausea
Do not take this medicine with any of the following medications:
ergot alkaloids like dihydroergotamine, ergonovine, ergotamine, methylergonovine
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 blood pressure
medicines for cold, cough or allergy
some medicines for Parkinson's disease
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). Protect from light. Throw away any unused medicine after the expiration date.
They need to know if you have any of these conditions:
high blood pressure, heart disease
an unusual or allergic reaction to dextromethorphan, guaifenesin, pseudoephedrine, other medicines, foods, dyes, or preservatives
pregnant or trying to get pregnant
Tell your doctor if your symptoms do not improve within 5 days or if they get worse. If you have trouble falling asleep at night, take the last dose of the day at least a few hours before bedtime.
Drink water as instructed while you are taking this medicine to help loosen mucus.
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