Generic name: guaifenesin [gwye-FEN-e-sin]
Drug class: Expectorants
Medically reviewed by Drugs.com. Last updated on Jun 4, 2024.
The Robitussin Chest Congestion brand name has been discontinued in the U.S. If generic versions of this product have been approved by the FDA, there may be generic equivalents available.
What is Robitussin?
Robitussin is an expectorant. It helps loosen congestion in your chest and throat, making it easier to cough out through your mouth.
Robitussin is used to reduce chest congestion caused by the common cold, infections, or allergies.
It may also be used for purposes not listed in this medication guide.
Warnings
You should not use this medicine if you are allergic to Robitussin (guaifenesin).
Use this medication exactly as directed on the label, or as prescribed by your doctor. Do not use it in larger amounts or for longer than recommended.
Do not give this medication to a child younger than 4 years old. 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.
Drink extra fluids to help loosen the congestion and lubricate your throat while you are taking this medication.
This medication may impair your thinking or reactions. Be careful if you drive or do anything that requires you to be alert.
Before taking this medicine
You should not use this medicine if you are allergic to Robitussin (guaifenesin).
FDA pregnancy category C. It is not known whether Robitussin will harm an unborn baby. Tell your doctor if you are pregnant or plan to become pregnant while using this medication.
It is not known whether Robitussin passes into breast milk or if it could harm a nursing baby. Do not use this medication without telling your doctor if you are breast-feeding a baby.
Robitussin Chest Congestion pregnancy and breastfeeding warnings (more detail)
Related/similar drugs
amoxicillin, albuterol, doxycycline, ciprofloxacin, azithromycin, benzonatate, ceftriaxone
How should I take Robitussin?
Use exactly as directed on the label, or as prescribed by your doctor. Do not use in larger or smaller amounts or for longer than recommended.
Do not give this medication to a child younger than 4 years old. 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.
Drink extra fluids to help loosen the congestion and lubricate your throat while you are taking this medication.
Take Robitussin with food if it upsets your stomach.
Measure the liquid form of Robitussin with a special dose-measuring spoon or cup, not a regular table spoon. If you do not have a dose-measuring device, ask your pharmacist for one.
Do not crush, chew, break, or open a controlled-release, delayed-release, or extended-release tablet or capsule. Swallow it whole. Breaking or opening the pill may cause too much of the drug to be released at one time.
Store at room temperature away from moisture, heat, and direct sunlight.
Detailed Robitussin Chest Congestion dosage information
What happens if I miss a dose?
Since cough medicine is taken when needed, you may not be on a dosing schedule. If you are taking the medication regularly, take the missed dose as soon as you remember. Skip the missed dose if it is almost time for your next scheduled dose. Do not take extra medicine to make up the missed dose.
What happens if I overdose?
Seek emergency medical attention or call the Poison Help line at 1-800-222-1222.
What to avoid
This medication may impair your thinking or reactions. Be careful if you drive or do anything that requires you to be alert.
Robitussin (guaifenesin) side effects
Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficult breathing; swelling of your face, lips, tongue, or throat.
Less serious side effects may include:
dizziness or headache,
a rash, or
nausea, vomiting, or stomach upset.
This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
Robitussin Chest Congestion side effects (more detail)
What other drugs will affect Robitussin?
There may be other drugs that can interact with Robitussin. Tell your doctor about all medications you use. This includes prescription, over-the-counter, vitamin, and herbal products. Do not start a new medication without telling your doctor.
Popular FAQ
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References
More about Robitussin Chest Congestion (guaifenesin)
- Compare alternatives
- Latest FDA alerts (4)
- Side effects
- Dosage information
- During pregnancy
- Drug class: expectorants
- Breastfeeding
Patient resources
- Robitussin (Guaifenesin Oral) advanced reading
Other brands
Mucinex, Tussin Expectorant, Guiatuss, Altarussin, ... +8 more
Professional resources
- Guaifenesin monograph
- Guaifenesin Tablets (FDA)
Other brands
Mucinex, Mucinex Maximum Strength
Related treatment guides
- Bronchitis
- Cough
- Bronchiectasis
Further information
Remember, keep this and all other medicines out of the reach of children, never share your medicines with others, and use this medication only for the indication prescribed.
Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circ*mstances.
Medical Disclaimer
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