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What is this medicine?

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.

What should I tell my health care provider before I take this medicine?

They need to know if you have any of these conditions:
  • diabetes
  • eczema
  • glaucoma
  • heart disease
  • high blood pressure
  • lung or breathing disease, like asthma
  • phenylketonuria
  • stomach ulcer
  • taken an MAOI like Carbex, Eldepryl, Marplan, Nardil, or Parnate in last 14 days
  • thyroid disease
  • trouble passing urine
  • an unusual or allergic reaction to chlorpheniramine; dextromethorphan; phenylephrine, other medicines, foods, dyes, or preservatives
  • pregnant or trying to get pregnant
  • breast- feeding

How should I use this medicine?

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.

What if I miss a dose?

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.

What may interact with this medicine?

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
  • procarbazine
  • 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:

  • alcohol
  • barbiturates like phenobarbital
  • mecamylamine
  • medicines for chest pain, heart disease, high blood pressure or heart rhythm problems
  • medicines for depression, anxiety, or psychotic disturbances
  • medicines for sleep
  • reserpine
  • some herbal or nutritional supplements
  • some medicines for Parkinson's disease
  • some medicines for pain

               
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