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Dextromethorphan/ guaifenesin/ potassium guaiacolsulfonate sustained-release capsules

Generic Name: dextromethorphan/guaifenesin/potassium guaiacolsulfonate (dex-troe-meth-OR-fan/gwye-FEN-eh-sin/poe-TASS-ee-um gwye-a-kole-SUL-foe-nate)
Brand Name: Humibid DM

Dextromethorphan/ guaifenesin/ potassium guaiacolsulfonate sustained-release capsules are used for:

Relieving symptoms of cough and mucus in the chest due to respiratory infections, asthma, colds, or hay fever. It may also be used for other conditions as determined by your doctor.

Dextromethorphan/guaifenesin/potassium guaiacolsulfonate sustained-release capsules are a combination of a cough suppressant and 2 expectorants. The cough suppressant works in the brain to reduce the cough reflex. The expectorants loosen mucus and lung secretions in the chest and make coughs more productive.

Do NOT use dextromethorphan/ guaifenesin/ potassium guaiacolsulfonate sustained-release capsules if:

  • you are allergic to any ingredient in dextromethorphan/guaifenesin/potassium guaiacolsulfonate sustained-release capsules
  • you have taken furazolidone or a monoamine oxidase (MAO) inhibitor (eg, phenelzine) within the last 14 days

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

Before using dextromethorphan/ guaifenesin/ potassium guaiacolsulfonate sustained-release capsules:

Some medical conditions may interact with dextromethorphan/guaifenesin/potassium guaiacolsulfonate sustained-release capsules. 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 a chronic cough that occurs with smoking, asthma, chronic bronchitis, or emphysema, or if cough occurs with large amounts of mucus

Some MEDICINES MAY INTERACT with dextromethorphan/guaifenesin/potassium guaiacolsulfonate sustained-release capsules. Tell your health care provider if you are taking any other medicines, especially any of the following:

  • Furazolidone or MAO inhibitors (eg, phenelzine) because the risk of serious side effects such as low blood pressure, fever, severe muscle problems, and possibly death may be increased by dextromethorphan/guaifenesin/potassium guaiacolsulfonate sustained-release capsules

This may not be a complete list of all interactions that may occur. Ask your health care provider if dextromethorphan/guaifenesin/potassium guaiacolsulfonate sustained-release capsules 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 dextromethorphan/ guaifenesin/ potassium guaiacolsulfonate sustained-release capsules:

Use dextromethorphan/guaifenesin/potassium guaiacolsulfonate sustained-release capsules as directed by your doctor. Check the label on the medicine for exact dosing instructions.

  • Dextromethorphan/guaifenesin/potassium guaiacolsulfonate sustained-release capsules may be taken with or without food.
  • Drinking extra fluids while you are taking dextromethorphan/guaifenesin/potassium guaiacolsulfonate sustained-release capsules is recommended. Check with your doctor for instructions.
  • Swallow dextromethorphan/guaifenesin/potassium guaiacolsulfonate sustained-release capsules whole. Do not break, crush, or chew before swallowing.
  • If you miss a dose of dextromethorphan/guaifenesin/potassium guaiacolsulfonate sustained-release capsules 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 dextromethorphan/guaifenesin/potassium guaiacolsulfonate sustained-release capsules.

Important safety information:

  • Dextromethorphan/guaifenesin/potassium guaiacolsulfonate sustained-release capsules may cause dizziness. Do not drive, operate machinery, or do anything else that could be dangerous until you know how you react to dextromethorphan/guaifenesin/potassium guaiacolsulfonate sustained-release capsules. Using dextromethorphan/guaifenesin/potassium guaiacolsulfonate sustained-release capsules alone, with certain other medicines, or with alcohol may lessen your ability to drive or to perform other potentially dangerous tasks.
  • If cough persists for more than 1 week or is accompanied by a fever, contact your health care provider. A persistent cough could be a sign of a serious condition.
  • Dextromethorphan/guaifenesin/potassium guaiacolsulfonate sustained-release capsules contains dextromethorphan. Before you begin taking any new prescription or nonprescription medicine, read the ingredients to see if it also contains dextromethorphan. If it does or if you are uncertain, contact your doctor or pharmacist.
  • Dextromethorphan/guaifenesin/potassium guaiacolsulfonate sustained-release capsules may interfere with some lab tests. Make sure your doctor and lab personnel know you are taking dextromethorphan/guaifenesin/potassium guaiacolsulfonate sustained-release capsules.
  • Use dextromethorphan/guaifenesin/potassium guaiacolsulfonate sustained-release capsules with caution in the ELDERLY because they may be more sensitive to its effects.
  • Use dextromethorphan/guaifenesin/potassium guaiacolsulfonate sustained-release capsules 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: If you become pregnant, discuss with your doctor the benefits and risks of using dextromethorphan/guaifenesin/potassium guaiacolsulfonate sustained-release capsules during pregnancy. It is unknown if dextromethorphan/guaifenesin/potassium guaiacolsulfonate sustained-release capsules are excreted in breast milk. If you are or will be breast-feeding while you are using dextromethorphan/guaifenesin/potassium guaiacolsulfonate sustained-release capsules, check with your doctor or pharmacist to discuss the risks to your baby.

Possible side effects of dextromethorphan/ guaifenesin/ potassium guaiacolsulfonate sustained-release capsules:

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; headache; nausea; upset stomach; vomiting.

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

Severe allergic reactions (rash; hives; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); lower back or side pain.

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.

Proper storage of dextromethorphan/guaifenesin/potassium guaiacolsulfonate sustained-release capsules:

Store dextromethorphan/guaifenesin/potassium guaiacolsulfonate sustained-release capsules at room temperature, 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 dextromethorphan/guaifenesin/potassium guaiacolsulfonate sustained-release capsules out of the reach of children and away from pets.

General information:

  • If you have any questions about dextromethorphan/guaifenesin/potassium guaiacolsulfonate sustained-release capsules, please talk with your doctor, pharmacist, or other health care provider.
  • Dextromethorphan/guaifenesin/potassium guaiacolsulfonate sustained-release capsules are 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 dextromethorphan/guaifenesin/potassium guaiacolsulfonate sustained-release capsules. 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.

Review Date: November 3, 2016

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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