Mucinex D

Generic Name: Guaifenesin and pseudoephedrine

  • What is this medication?

    Mucinex D contains an expectorant and a nasal decongestant. It is intended to temporarily relieve nasal congestion due to the common cold, hay fever, and upper respiratory allergies; temporarily restore freer breathing through the nose, promote drainage from the sinuses and nose; temporarily relieve sinus congestion and pressure; and help loosen phlegm (mucus) and thin bronchial secretions to rid the bronchial passageways of bothersome mucus and make coughs more productive.
  • Are there any warnings associated with Mucinex D?

    Do not use this product if you are taking a prescription monoamine oxidase inhibitor (MAOI), or for 2 weeks after stopping the MAOI drug. MAOIs are sometimes used for treating Parkinson's disease, depression, and other emotional or psychiatric conditions.

    Do not use more of this product than directed. Do not crush, chew, or break tablet.

    Stop using this product and talk to a doctor if symptoms don't get better within 7 days, symptoms go away then come back, or symptoms occur with a fever, rash, or lingering headache. These could be signs of a serious condition.

    Also stop using this product and talk to a doctor if you develop nervousness, dizziness, or sleeplessness.

    Do not use this product if the carton is open or if the printed seal on the blister packaging is broken or missing.

    Do not use Mucinex D in children under 12 years of age.

    Keep this product out of the reach of children. In the event of an overdose, obtain medical help or contact a poison control center immediately.

  • Should I talk to my doctor before taking Mucinex D?

    Talk to a doctor or pharmacist before using this product if you don't know whether a prescription drug you have been taking contains an MAOI.

    Talk to a doctor before using Mucinex D if you have heart disease, thyroid disease, high blood pressure, diabetes, or trouble urinating due to an enlarged prostate gland.

    Talk to a doctor before using this medication if you have a persistent or chronic cough such as occurs with asthma, chronic bronchitis, emphysema, or smoking. Also talk to a doctor before using if you have a cough accompanied by excessive phlegm (mucus).

    Talk to a doctor before using this product if you are pregnant or breastfeeding.

  • What are the possible side effects of Mucinex D?

    Side effects cannot always be anticipated. If any develop or change in intensity, tell your doctor as soon as possible. Only your doctor can determine if it is safe for you to continue taking this drug.
  • What should I avoid while taking Mucinex D?

    Do not take more than 4 tablets in a 24-hour period. Do not crush, chew, or break the tablet.
  • What are possible food and drug interactions associated with Mucinex D?

    If Mucinex D is taken with certain other drugs, the effects of either could be increased, decreased, or altered. Always check with your doctor before combining Mucinex D with any other medication.
  • What is the usual dosage of Mucinex D?

    Do not crush, chew, or break the tablets. Take the tablets with a full glass of water. This product can be administered without regard for timing of meals.

    Adults and children 12 years: Take 2 tablets every 12 hours; not more than 4 tablets in 24 hours.

    Children <12 years: Do not use.

  • How should I store Mucinex D?

    Store at room temperature.

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I'm Kristen Dore, PharmD. Welcome to PDR Health!

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