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Comtrex Cold and Cough Maximum Strength

Generic Name: acetaminophen/dextromethorphan/phenylephrine (a-SEET-a-MIN-oh-fen/DEX-troe-meth-OR-fan/FEN-il-EF-rin)
Brand Name: Examples include Comtrex Cold and Cough Maximum Strength and Vicks DayQuil Multi-Symptom Cold/Flu Relief

Comtrex Cold and Cough Maximum Strength is used for:

Relieving pain, congestion, and cough due to colds, flu, or hay fever. It may also be used for other conditions as determined by your doctor.

Comtrex Cold and Cough Maximum Strength is an analgesic, cough suppressant, and decongestant combination. The analgesic and cough suppressant work in the brain to decrease pain and reduce the cough reflex. The decongestant works by constricting blood vessels and reducing swelling in the nasal passages, which helps you breathe more easily.

Do NOT use Comtrex Cold and Cough Maximum Strength if:

  • you are allergic to any ingredient in Comtrex Cold and Cough Maximum Strength
  • you have severe high blood pressure, rapid heartbeat, or other severe heart problems (eg, heart blood vessel disease)
  • you have taken furazolidone or a monoamine oxidase inhibitor (MAOI) (eg, phenelzine) within the last 14 days

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

Slideshow: OTC Medication Use In Pregnancy: Wise or Worrisome?

Before using Comtrex Cold and Cough Maximum Strength:

Some medical conditions may interact with Comtrex Cold and Cough Maximum Strength. 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 history of glaucoma, an enlarged prostate gland or other prostate problems, heart problems, diabetes, high blood pressure, blood vessel problems, adrenal gland problems, an overactive thyroid, seizures, stroke, liver problems (eg, hepatitis), or severe kidney problems, or if you drink more than 3 alcohol-containing drinks per day
  • if you have a history of asthma, chronic cough, chronic obstructive pulmonary disease (COPD), or other lung problems (eg, chronic bronchitis, emphysema), or if your cough produces large amounts of mucus

Some MEDICINES MAY INTERACT with Comtrex Cold and Cough Maximum Strength. 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, tolcapone), furazolidone, indomethacin, isoniazid, MAOIs (eg, phenelzine), or tricyclic antidepressants (eg, amitriptyline) because they may increase the risk of Comtrex Cold and Cough Maximum Strength's side effects.
  • Anticoagulants (eg, warfarin), digoxin, or droxidopa because the risk of side effects, such as bleeding, irregular heartbeat, or heart attack, may be increased
  • Bromocriptine because the risk of its side effects may be increased by Comtrex Cold and Cough Maximum Strength
  • Guanadrel, guanethidine, mecamylamine, methyldopa, or reserpine because their effectiveness may be decreased by Comtrex Cold and Cough Maximum Strength

This may not be a complete list of all interactions that may occur. Ask your health care provider if Comtrex Cold and Cough Maximum Strength 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 Comtrex Cold and Cough Maximum Strength:

Use Comtrex Cold and Cough Maximum Strength as directed by your doctor. Check the label on the medicine for exact dosing instructions.

  • Take Comtrex Cold and Cough Maximum Strength by mouth with or without food.
  • If you miss a dose of Comtrex Cold and Cough Maximum Strength, 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 Comtrex Cold and Cough Maximum Strength.

Important safety information:

  • Comtrex Cold and Cough Maximum Strength may cause dizziness or drowsiness. These effects may be worse if you take it with alcohol or certain medicines. Use Comtrex Cold and Cough Maximum Strength with caution. Do not drive or perform other possibly unsafe tasks until you know how you react to it.
  • Do not take diet or appetite control medicines while you are taking Comtrex Cold and Cough Maximum Strength without checking with your doctor.
  • Comtrex Cold and Cough Maximum Strength has acetaminophen, dextromethorphan, and phenylephrine in it. Before you start any new medicine, check the label to see if it has acetaminophen, dextromethorphan, or phenylephrine in it too. If it does or if you are not sure, check with your doctor or pharmacist.
  • Do not use Comtrex Cold and Cough Maximum Strength for a cough with a lot of mucous. Do not use it for a long-term cough (eg, caused by asthma, emphysema, smoking). However, you may use it for these conditions if your doctor tells you to.
  • Do NOT take more than the recommended dose or use for longer than prescribed without checking with your doctor.
  • If your symptoms do not get better within 5 to 7 days or if they become worse, check with your doctor.
  • Comtrex Cold and Cough Maximum Strength may harm your liver. Your risk may be greater if you drink alcohol while you are using Comtrex Cold and Cough Maximum Strength. Talk to your doctor before you take Comtrex Cold and Cough Maximum Strength or other fever reducers if you drink more than 3 drinks with alcohol per day.
  • A very bad skin reaction (Stevens-Johnson syndrome/toxic epidermal necrolysis) may happen. It can cause very bad health problems that may not go away and sometimes death. Get medical help right away if you have signs like red, swollen, blistered, or peeling skin (with or without fever); red or irritated eyes; or sores in your mouth, throat, nose, or eyes.
  • Comtrex Cold and Cough Maximum Strength may interfere with certain lab tests. Be sure your doctor and lab personnel know you are taking Comtrex Cold and Cough Maximum Strength.
  • Tell your doctor or dentist that you take Comtrex Cold and Cough Maximum Strength before you receive any medical or dental care, emergency care, or surgery.
  • Use Comtrex Cold and Cough Maximum Strength with caution in the ELDERLY; they may be more sensitive to its effects.
  • Comtrex Cold and Cough Maximum Strength should be used with extreme caution in CHILDREN; they may be more sensitive to its effects.
  • PREGNANCY and BREAST-FEEDING: If you become pregnant, contact your doctor. You will need to discuss the benefits and risks of using Comtrex Cold and Cough Maximum Strength while you are pregnant. It is not known if Comtrex Cold and Cough Maximum Strength is found in breast milk. Do not breast-feed while taking Comtrex Cold and Cough Maximum Strength.

Possible side effects of Comtrex Cold and Cough Maximum Strength:

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; excitability; headache; nausea; nervousness or anxiety; trouble sleeping; weakness.

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); difficulty urinating; fast or irregular heartbeat; hallucinations; seizures; severe dizziness, lightheadedness, or headache; stomach pain; tremor; yellowing of 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 blurred vision; confusion; hallucinations; seizures; severe dizziness, lightheadedness, or headache; severe drowsiness; stomach pain; unusually fast, slow, or irregular heartbeat; vomiting; yellowing of skin or eyes.

Proper storage of Comtrex Cold and Cough Maximum Strength:

Store Comtrex Cold and Cough Maximum Strength between 59 and 86 degrees F (15 and 30 degrees C). Store away from heat, moisture, and light. Do not store in the bathroom. Keep Comtrex Cold and Cough Maximum Strength out of the reach of children and away from pets.

General information:

  • If you have any questions about Comtrex Cold and Cough Maximum Strength, please talk with your doctor, pharmacist, or other health care provider.
  • Comtrex Cold and Cough Maximum Strength 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 should not be used to decide whether or not to take Comtrex Cold and Cough Maximum Strength or any other medicine. Only your health care provider has the knowledge and training to decide which medicines are right for you. This information does not endorse any medicine as safe, effective, or approved for treating any patient or health condition. This is only a brief summary of general information about Comtrex Cold and Cough Maximum Strength. It does NOT include all information about the possible uses, directions, warnings, precautions, interactions, adverse effects, or risks that may apply to Comtrex Cold and Cough Maximum Strength. This information is not specific medical advice and does not replace information you receive from your health care provider. You must talk with your healthcare provider for complete information about the risks and benefits of using Comtrex Cold and Cough Maximum Strength.

Issue Date: July 2, 2014
Database Edition 14.3.1.001
Copyright © 2014 Wolters Kluwer Health, Inc.

Disclaimer: This information should not be used to decide whether or not to take this medicine or any other medicine. Only your health care provider has the knowledge and training to decide which medicines are right for you. This information does not endorse any medicine as safe, effective, or approved for treating any patient or health condition. This is only a brief summary of general information about this medicine. It does NOT include all information about the possible uses, directions, warnings, precautions, interactions, adverse effects, or risks that may apply to this medicine. This information is not specific medical advice and does not replace information you receive from your health care provider. You must talk with your healthcare provider for complete information about the risks and benefits of using this medicine.

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