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Mucinex Side Effects

Mucinex is an over-the-counter expectorant and decongestant medication containing guaifenesin and pseudoephedrine. It is used to relax coughs caused by colds, bronchitis, sinusitis and other upper respiratory tract infections.

  1. Considerations

    • Side effects are generally uncommon when taking Mucinex. However, if any side effects do occur, contact your health care provider or pharmacist immediately.

    Identification

    • Some of the less severe side effects include nausea, vomiting, diarrhea, stomach cramps and drowsiness.

    Warning

    • More severe reactions to Mucinex are caused by allergies to the Mucinex ingredients guaifenesin and pseudoephedrine.

    Features

    • Allergic reactions to Mucinex include trouble breathing, intense dizziness, swelling and itching of the throat, tongue and face, as well as a rash outbreak.

    Concerns

    • In addition to allergy concerns, Mucinex is also not recommended for people with a thyroid disorder, diabetes, high blood pressure or heart disease, without the supervision and approval of a doctor.

    Report Side Effects

    • Side effects should be reported to the Food and Drug Administration.

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