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Acetaminophen/ dexchlorpheniramine/ pseudoephedrine

Generic name: acetaminophen/dexchlorpheniramine/pseudoephedrine (ah-seet-ah-MIN-oh-fen/dex-klor-fen-IR-a-meen/soo-doe-e-FED-rin)
Brand name: Hexaflu

Acetaminophen/ dexchlorpheniramine/ pseudoephedrine is used for:

Relieving symptoms of colds, hay fever, and allergies such as headache, sinus pain, nasal and sinus congestion, sneezing, watery eyes, runny nose, fever, and itching of the nose or throat. It may also be used for other conditions as determined by your doctor.

Acetaminophen/dexchlorpheniramine/pseudoephedrine is an analgesic, antihistamine, and decongestant combination. The analgesic works in the brain to help decrease pain. The antihistamine works by blocking histamine, a substance in the body that causes sneezing, runny nose, and watery eyes. The decongestant works by constricting blood vessels and reducing swelling in the nasal passages.

Do NOT use acetaminophen/ dexchlorpheniramine/ pseudoephedrine if:

  • you are allergic to any ingredient in acetaminophen/dexchlorpheniramine/pseudoephedrine
  • you are taking sodium oxybate (GHB) or you have taken furazolidone a monoamine oxidase (MAO) inhibitor (eg, phenelzine) within the last 14 days
  • you have severe high blood pressure, severe heart blood vessel disease, rapid heartbeat, or severe heart problems
  • you are unable to urinate or are having an asthma attack

Contact your doctor or health care provider right away if any of these apply to you.

Before using acetaminophen/ dexchlorpheniramine/ pseudoephedrine:

Some medical conditions may interact with acetaminophen/dexchlorpheniramine/pseudoephedrine. Tell your doctor or pharmacist if you have any medical conditions, especially if any of the following apply to you:

  • if you are pregnant, planning to become pregnant, or are breast-feeding
  • if you are taking any prescription or nonprescription medicine, herbal preparation, or dietary supplement
  • if you have allergies to medicines, foods, or other substances
  • if you have a fast, slow, or irregular heartbeat
  • if you have a history of asthma; lung problems (eg, emphysema); heart problems; diabetes; difficulty urinating; an enlarged prostate or other prostate problems; glaucoma; high blood pressure; an overactive thyroid; liver problems (eg, hepatitis) or severe kidney problems; adrenal gland problems (eg, pheochromocytoma); sleep apnea; trouble sleeping; stomach problems; ulcers; seizures; blood vessel problems; stroke; or a blockage of your stomach, intestines, or bladder
  • if you drink more than 3 alcohol-containing drinks per day

Some MEDICINES MAY INTERACT with acetaminophen/dexchlorpheniramine/pseudoephedrine. Tell your health care provider if you are taking any other medicines, especially any of the following:

  • Beta-blockers (eg, propranolol), catechol-O-methyltransferase (COMT) inhibitors (eg, entacapone), furazolidone, indomethacin, isoniazid, sodium oxybate (GHB), or tricyclic antidepressants (eg, amitriptyline) because the side effects of acetaminophen/dexchlorpheniramine/pseudoephedrine may be increased
  • Anticoagulants (eg, warfarin), bromocriptine, digoxin, droxidopa, or hydantoins (eg, phenytoin) because the risk of side effects may be increased by acetaminophen/dexchlorpheniramine/pseudoephedrine
  • Guanadrel, guanethidine, mecamylamine, methyldopa, or reserpine because the effectiveness of these medicines may be decreased

This may not be a complete list of all interactions that may occur. Ask your health care provider if acetaminophen/dexchlorpheniramine/pseudoephedrine may interact with other medicines that you take. Check with your health care provider before you start, stop, or change the dose of any medicine.

How to use acetaminophen/ dexchlorpheniramine/ pseudoephedrine:

Use acetaminophen/dexchlorpheniramine/pseudoephedrine as directed by your doctor. Check the label on the medicine for exact dosing instructions.

  • Acetaminophen/dexchlorpheniramine/pseudoephedrine may be taken with food if it upsets your stomach.
  • If you miss a dose of acetaminophen/dexchlorpheniramine/pseudoephedrine and you are taking it regularly, take it as soon as possible. If it is almost time for your next dose, skip the missed dose and go back to your regular dosing schedule. Do not take 2 doses at once.

Ask your health care provider any questions you may have about how to use acetaminophen/dexchlorpheniramine/pseudoephedrine.

Important safety information:

  • Acetaminophen/dexchlorpheniramine/pseudoephedrine may cause drowsiness or dizziness. Do not drive, operate machinery, or do anything else that could be dangerous until you know how you react to acetaminophen/dexchlorpheniramine/pseudoephedrine. Using acetaminophen/dexchlorpheniramine/pseudoephedrine alone, with certain other medicines, or with alcohol may lessen your ability to drive or perform other potentially dangerous tasks.
  • Acetaminophen/dexchlorpheniramine/pseudoephedrine will add to the effects of alcohol and other depressants. Ask your pharmacist if you have questions about which medicines are depressants.
  • Do not exceed the recommended dose of acetaminophen/dexchlorpheniramine/pseudoephedrine. Doing so will not improve your condition faster and may increase your risk for side effects.
  • If your symptoms do not improve within a few days or if they become worse, check with your doctor.
  • Acetaminophen/dexchlorpheniramine/pseudoephedrine contains acetaminophen, dexchlorpheniramine, and pseudoephedrine. Before you begin taking any new prescription or nonprescription medicine, read the ingredients to see if it also contains acetaminophen, dexchlorpheniramine, or pseudoephedrine. If it does or if you are uncertain, contact your doctor or pharmacist.
  • Do not take diet or appetite control medicines while you are taking acetaminophen/dexchlorpheniramine/pseudoephedrine without checking with your doctor.
  • If you consume 3 or more alcohol-containing drinks every day, ask your doctor whether you should take acetaminophen/dexchlorpheniramine/pseudoephedrine or other pain relievers/fever reducers. Acetaminophen may cause liver damage. Alcohol use combined with acetaminophen/dexchlorpheniramine/pseudoephedrine may increase your risk for liver damage.
  • If you are scheduled for allergy skin testing, do not take acetaminophen/dexchlorpheniramine/pseudoephedrine for several days before the test because it may decrease your response to the skin tests.
  • If you have trouble sleeping, ask your doctor or pharmacist about the best time of the day to take acetaminophen/dexchlorpheniramine/pseudoephedrine.
  • Use acetaminophen/dexchlorpheniramine/pseudoephedrine with caution in the ELDERLY because they may be more sensitive to its effects.
  • Use acetaminophen/dexchlorpheniramine/pseudoephedrine with extreme caution in CHILDREN younger than 12 years of age. Safety and effectiveness in this age group have not been confirmed.
  • PREGNANCY and BREAST-FEEDING: It is unknown if acetaminophen/dexchlorpheniramine/pseudoephedrine can cause harm to the fetus. If you become pregnant while taking acetaminophen/dexchlorpheniramine/pseudoephedrine, discuss with your doctor the benefits and risks of using acetaminophen/dexchlorpheniramine/pseudoephedrine during pregnancy. Some of the ingredients in acetaminophen/dexchlorpheniramine/pseudoephedrine are excreted in breast milk. If you are or will be breast-feeding while you are using acetaminophen/dexchlorpheniramine/pseudoephedrine, check with your doctor or pharmacist to discuss the risks to your baby.

Possible side effects of acetaminophen/ dexchlorpheniramine/ pseudoephedrine:

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome:

Dizziness; drowsiness; dry mouth, nose, or throat; headache; nausea; nervousness; trouble sleeping.

Seek medical attention right away if any of these SEVERE side effects occur:

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); chest pain; dark urine or pale stools; difficulty urinating; excessive sweating; frequent urination; hallucinations; pounding in the chest; rapid pulse; severe nervousness; stomach pain; tremors; unusual fatigue; yellowing of the skin or eyes.

This is not a complete list of all side effects that may occur. If you have questions about side effects, contact your health care provider. Call your doctor for medical advice about side effects. To report side effects to the appropriate agency, please read the Guide to Reporting Problems to FDA.

If OVERDOSE is suspected:

Contact 1-800-222-1222 (the American Association of Poison Control Centers), your local poison control center, or emergency room immediately. Symptoms may include fast or irregular heartbeat; fever; hallucinations; nausea; seizures; sweating; tremors; trouble breathing; unusual drowsiness or dizziness; vomiting.

Proper storage of acetaminophen/dexchlorpheniramine/pseudoephedrine:

Store acetaminophen/dexchlorpheniramine/pseudoephedrine at 77 degrees F (25 degrees C). Store away from heat, moisture, and light. Do not store in the bathroom. Keep acetaminophen/dexchlorpheniramine/pseudoephedrine out of the reach of children and away from pets.

General information:

  • If you have any questions about acetaminophen/dexchlorpheniramine/pseudoephedrine, please talk with your doctor, pharmacist, or other health care provider.
  • Acetaminophen/dexchlorpheniramine/pseudoephedrine is to be used only by the patient for whom it is prescribed. Do not share it with other people.
  • If your symptoms do not improve or if they become worse, check with your doctor.
  • Check with your pharmacist about how to dispose of unused medicine.

This information is a summary only. It does not contain all information about acetaminophen/dexchlorpheniramine/pseudoephedrine. If you have questions about the medicine you are taking or would like more information, check with your doctor, pharmacist, or other health care provider.

Issue Date: June 3, 2015

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.