CHLORPHENIRAMINE; DEXTROMETHORPHAN; PHENYLEPHRINE (klor fen IR a meen; dex troe meth OR fan; fen il EF rin) is a combination of an antihistamine, a cough suppressant, and a decongestant. This medicine is used to treat the symptoms of allergies and the common cold. This medicine will not treat an infection.
Take this medicine by mouth with a glass of water. Follow the directions on the prescription label. Do not cut, crush or chew this medicine. 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 6 years old for selected conditions, precautions do apply.
Patients over 60 years old may have a stronger reaction to this medicine 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
changes in vision
cold, clammy skin
feeling faint or lightheaded, falls
fast or irregular heartbeat
high 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):
loss of appetite
nervous or restless
stomach upset, nausea
Do not take this medicine with any of the following medications:
MAOIs like Carbex, Eldepryl, Marplan, Nardil, and Parnate
medicines for cold, cough, or allergy
medicines for weight loss
some medicines for migraine headaches
stimulant medicines for attention disorders, weight loss, or to stay awake
This medicine may also interact with the following medications:
barbiturates like phenobarbital
medicines for chest pain, heart disease, high blood pressure or heart rhythm problems
medicines for depression, anxiety, or psychotic disturbances
medicines for sleep
some herbal or nutritional supplements
some medicines for Parkinson's disease
some medicines for pain
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. Keep container tightly closed. Throw away any unused medicine after the expiration date.
They need to know if you have any of these conditions:
lung or breathing disease, like asthma
taken an MAOI like Carbex, Eldepryl, Marplan, Nardil, or Parnate in last 14 days
trouble passing urine
an unusual or allergic reaction to chlorpheniramine; dextromethorphan; phenylephrine, other medicines, foods, dyes, or preservatives
pregnant or trying to get pregnant
Tell your doctor or health care 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, see your doctor. Do not take this medicine for more than one week unless directed by your doctor. Do not take more than the recommended dose.
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. To reduce the risk of dizzy or fainting spells, do not stand or sit up quickly, especially if you are an older patient. Alcohol may increase dizziness and drowsiness. Avoid alcoholic drinks.
Your mouth may get dry. Chewing sugarless gum or sucking hard candy, and drinking plenty of water may help. Contact your doctor if the problem does not go away or is severe.
This medicine may cause dry eyes and blurred vision. If you wear contact lenses you may feel some discomfort. Lubricating drops may help. See your eye doctor if the problem does not go away or is severe.