There are many brands and forms of guaifenesin and pseudoephedrine available and not all brands are listed on this leaflet.

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).

Guaifenesin and pseudoephedrine is a combination medicine used to treat stuffy nose and sinus congestion, and to reduce chest congestion caused by the common cold or flu.

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  • Ambifed-G, Despec-SR, Entex T, ExeFen-IR, Maxifed, Mucinex D, Mucinex D Max Strength, Poly-Vent IR, Respaire-30, Robitussin Severe Congestion, Sinutab Non Drying, Triaminic Softchews Chest Congestion, Tusnel Pediatric Drops
  • Dizziness; excitability; headache; nausea; nervousness or anxiety; trouble sleeping; weakness.

    Seek medical attention right away if any of these SEVERE side effects occur while taking guaifenesin / pseudoephedrine:
    Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); difficulty urinating; fast or irregular heartbeat; hallucinations; seizures; severe dizziness, lightheadedness, or headache; tremor.
  • (oral tablet, oral tablet, extended release, oral capsule, oral syrup, oral tablet, chewable, oral capsule, extended release, oral liquid)