What Are the Side Effects of Mucinex Expectorant?
Mucinex expectorant, or guaifenesin, is an over-the-counter medication used to relieve coughs associated with upper respiratory tract infections. Though effective and safe, it does have some side effects.
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Frequency
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Side effects are generally uncommon with Mucinex, but if any adverse reaction occurs, contact your doctor or pharmacist as soon as possible.
Common Side Effects
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The common side effects of Mucinex, when they do occur, are stomach cramps, diarrhea, nausea, vomiting and drowsiness.
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Allergic Reactions
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The more serious reactions to Mucinex are usually allergic reactions to its ingredients.
Serious Side Effects
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Severe allergic reactions to Mucinex can include severe dizziness, difficulty breathing, face, tongue and throat itching and swelling, and a rash. Mucinex reactions can also include increased blood pressure, body aches and rapid heartbeat.
Warning
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Should any side effects occur while taking Mucinex, report them to the Food and Drug Administration at (800) FDA-1088.
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