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Medications and Drugs

Brand Names: Maxiflu CD, Maxiflu CDX

Generic Name: acetaminophen, codeine, guaifenesin, and pseudoephedrine (Pronunciation: a SEET oh MIN oh fen, KOE deen, gwye FEN e sin, SOO doe ee FED rin)

What is acetaminophen, codeine, guaifenesin, and pseudoephedrine (Maxiflu CD, Maxiflu CDX)?

Acetaminophen is a pain reliever and fever reducer.

Codeine is a narcotic cough suppressant. It affects the signals in the brain that trigger cough reflex.

Guaifenesin is an expectorant. It helps loosen mucus congestion in your chest and throat, making it easier to cough out through your mouth.

Pseudoephedrine is a decongestant that shrinks blood vessels in the nasal passages. Dilated blood vessels can cause nasal congestion (stuffy nose).

The combination of acetaminophen, codeine, guaifenesin, and pseudoephedrine is used to treat headache, fever, body aches, cough, chest congestion, stuffy nose, and sinus congestion caused by allergies, the common cold, or the flu.

This medicine will not treat a cough that is caused by smoking, asthma, or emphysema.

Acetaminophen, codeine, guaifenesin, and pseudoephedrine may also be used for other purposes not listed in this medication guide.

What are the possible side effects of this medicine (Maxiflu CD, Maxiflu CDX)?

Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.

Stop using this medication and call your doctor at once if you have a serious side effect such as:

  • confusion, mood changes, severe dizziness or anxiety, feeling like you might pass out;
  • sudden severe headache or vomiting, pain or numbness in the arms or legs;
  • tremor, seizure (convulsions);
  • nausea, pain in your upper stomach, itching, loss of appetite, dark urine, clay-colored stools, jaundice (yellowing of your skin or eyes); or
  • dangerously high blood pressure (severe headache, blurred vision, buzzing in your ears, anxiety, chest pain, uneven heartbeats, seizure).

Less serious side effects may include:

  • dizziness, drowsiness, mild headache;
  • mild nausea, upset stomach, constipation;
  • runny nose;
  • feeling nervous, restless, or anxious; or
  • sleep problems (insomnia).

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

What is the most important information I should know about this medicine (Maxiflu CD, Maxiflu CDX)?

Do not take more of this medication than is recommended. An overdose of acetaminophen can damage your liver or cause death. Tell your doctor if you have ever had alcoholic liver disease (cirrhosis) or if you drink more than 3 alcoholic beverages per day.

You should not use this medicine if you have inflammatory bowel disease, severe constipation, a blockage in your stomach or intestines, severe colitis or toxic megacolon, if you have a colostomy or ileostomy, if you are unable to urinate, if you have been sick with diarrhea, if you recently drank large amounts of alcohol, or if you have a head injury or brain tumor.

Do not use this medicine if you have untreated or uncontrolled diseases such as glaucoma, asthma or COPD, high blood pressure, heart disease, coronary artery disease, or overactive thyroid.

Do not drink alcohol while you are taking this medicine.

Do not use this medicine if you have used an MAO inhibitor such as furazolidone (Furoxone), isocarboxazid (Marplan), phenelzine (Nardil), rasagiline (Azilect), selegiline (Eldepryl, Emsam, Zelapar), or tranylcypromine (Parnate) in the last 14 days. A dangerous drug interaction could occur, leading to serious side effects.



Report Problems to the Food and Drug Administration

You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.

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