Over-the-counterLower-cost generic availableClass: Respiratory

Mucinex 

(guaifenesin)

Over-the-counterLower-cost generic availableClass: Respiratory
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Breaks up mucus that causes cough.

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Our bottom line

Mucinex (Guaifenesin) is a useful medicine for loosening congestion in your chest and throat, and it lasts longer than other guaifenesin products.

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Upsides

  • Mucinex (Guaifenesin) reduces the thickness and amount of mucus in your throat and chest.
  • Lasts longer than some other products that contain guaifenesin, such as Robitussin, because it's an extended-release form.
  • It’s available at the drugstore either by itself or in combination with other medications to treat cold and flu symptoms.
  • Available in liquid and tablet forms.
  • Mucinex (Guaifenesin) is alcohol- and sugar-free.
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Downsides

  • Mucinex (Guaifenesin) is more expensive than other medications that treat congestion.
  • You need to drink a lot of fluids while taking this medication or it won't work as well.
  • Mucinex (Guaifenesin) isn’t useful if you have a dry cough.
  • Can cause nausea, headache, and an upset stomach.
How it works

Mucinex (Guaifenesin) is an expectorant. It contains guaifenesin, which thins and loosens mucus, making it easier to cough out.

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Side effect rates for Mucinex (guaifenesin)

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These are side effects of Mucinex (guaifenesin) reported to the FDA by people taking it, and by doctors and pharmacists.
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Risks and Warnings for Mucinex (guaifenesin)

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  • Some people taking Mucinex (Guaifenesin) have reported nausea and vomiting. This is very rare and usually not serious. However, if you develop a fever with the nausea and vomiting, then talk to your doctor right away.

Common concerns from people taking Mucinex (guaifenesin)

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Pregnancy
Alcohol
  • Mucinex (Guaifenesin) is alcohol- and sugar-free.