Generic name:guaifenesin and pseudoephedrine [ gwye-FEN-e-sin, soo-doe-e-FED-rin ]
Brand names: Altarussin PE, Ambifed, Biotuss PE, D-Feda II, Despec-SR,
... show all 33 brands
Drug class:Upper respiratory combinations
Medically reviewed by Drugs.com. Last updated on Apr 4, 2022.
What is Mucinex D?
Mucinex D extended release tablets contain a combination of guaifenesin and pseudoephedrine. Guaifenesin is an expectorant. It helps loosen congestion in your chest and throat, making it easier to cough out through your mouth.
Pseudoephedrine is a decongestant that shrinks blood vessels in the nasal passages. Dilated blood vessels can cause nasal congestion (stuffy nose).
Mucinex D tablets are used to treat nasal and sinus congestion. Mucinex D also is used to reduce chest congestion caused by the common cold, infections, or allergies.
Mucinex D may also be used for purposes other than those listed.
Warnings
Always ask a doctor before giving a cough or cold medicine to a child. Death can occur from the misuse of cough and cold medicines in very young children.
Do not use Mucinex D if you have used an MAO inhibitor such as isocarboxazid (Marplan), phenelzine (Nardil), rasagiline (Azilect), selegiline (Eldepryl, Emsam), or tranylcypromine (Parnate) within the past 14 days. Serious, life-threatening side effects can occur if you take Mucinex D before the MAO inhibitor has cleared from your body.
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