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Related to Mucinex: guaifenesin


1. promoting expectoration.
2. an agent that so acts.
liquefying expectorant an expectorant that promotes the ejection of mucus from the respiratory tract by decreasing its viscosity.

guaifenesin (glyceryl guaiacolate)

Balminil Expectorant (CA), Benilyn Childrens Chesty Coughs (UK), Benylin-E (CA), Calmylin Expectorant (CA), Diabetic Tussin EX, Genatuss, Koffex Expectorant (CA), Mucinex, Organidin NR, Phanacin XPECT, Pneumomist, Resyl (CA), Robitussin, Robitussin Chesty Cough (UK), Scot-tussin Expectorant, Siltussin SA, Tixylix Chesty Cough (UK), Venos for Kids (UK), Vicks Vaposyrup for Chesty Coughs (UK)

Pharmacologic class: Propanediol derivative

Therapeutic class: Expectorant

Pregnancy risk category C


Exerts vasoconstrictive action that leads to decreased edema and congestion. Also increases respiratory secretions and reduces mucus viscosity.


Capsules: 200 mg

Oral solution: 100 mg/5 ml, 200 mg/5 ml

Syrup: 100 mg/5 ml

Tablets: 100 mg, 200 mg, 400 mg

Tablets (extended-release): 600 mg

Indications and dosages

Cough due to upper respiratory tract infection

Adults: 200 to 400 mg P.O. q 4 hours (not to exceed 2,400 mg/day), or 600 to 1,200 mg P.O. (extended-release tablets) q 12 hours (not to exceed 2,400 mg/day)

Children ages 6 to 12: 100 to 200 mg P.O. q 4 hours (not to exceed 1,200 mg/day), or 600 mg P.O. (extended-release) q 12 hours (not to exceed 1,200 mg/day)

Children ages 2 to 6: 50 to 100 mg P.O. q 4 hours (not to exceed 600 mg/day)


• Hypersensitivity to drug
• Alcohol intolerance (with some products)


Use cautiously in:
• diabetes mellitus, cough lasting more than 1 week or accompanied by fever, rash, or headache
• patients receiving disulfiram concurrently
• pregnant patients.


• Give with full glass of water.

Adverse reactions

CNS: headache, dizziness

GI: nausea, vomiting, diarrhea, stomach pain

Skin: rash, urticaria


Drug-diagnostic tests.Urinary 5-hydroxyindoleacetic acid, vanillylmandelic acid: inaccurate results

Patient monitoring

• Assess cough quality and productivity. Reevaluate treatment if cough persists and is accompanied by fever or headache.

Patient teaching

• Tell patient to take with 8 oz of water and to drink plenty of fluids.
• Instruct patient to contact prescriber if cough lasts more than 1 week.
• Caution patient to avoid driving and other hazardous activities until he knows how drug affects concentration and alertness.
• As appropriate, review all other significant adverse reactions and interactions, especially those related to the tests mentioned above.


An expectorant that allegedly reduces the viscosity of sputum, thus facilitating its elimination.


/guai·fen·e·sin/ (gwi-fen´ĕ-sin) an expectorant believed to act by reducing sputum viscosity.


An expectorant drug, C10H14O4, that is used to thin mucus and sputum.


glyceryl guaiacolate, a white to slightly gray powder with a bitter taste and faint odor, widely used as an expectorant. Guaifenesin increases the flow of fluid in the respiratory tract, reducing the viscosity of bronchial and tracheal secretions and facilitating their removal by the cough reflex and ciliary action. It may increase the risk of hemorrhage in patients taking heparin.


Monafed® Common cold An OTC agent for relief of cold/cough. See Common cold.


An expectorant that allegedly reduces the viscosity of sputum, thus facilitating its elimination.


An expectorant that allegedly reduces viscosity of sputum, thus facilitating its elimination.

guaifenesin (gwī´əfen´əsin),

n brand names: Anti-Tuss, Robitussin;
drug class: expectorant;
action: acts as an expectorant by stimulating mucosal reflex to increase production of less viscous lung mucus;
use: dry, nonproductive cough.


the glyceryl ester of guaiacol; used as an expectorant and as a muscle relaxant in anesthetic procedures.
References in periodicals archive ?
Adams filed the lawsuit in response to Perrigo's notification that it filed a Paragraph IV Certification in connection with its Abbreviated New Drug Application (ANDA), which seeks FDA approval to engage in the commercial manufacture, use or sale of guaifenesin 600 mg single-ingredient, extended-release tablets (equivalent to Adams' Mucinex SE), prior to the expiration of the '252 patent.
A strong period for heartburn relief Gaviscon was offset by weak sales of decongestant Mucinex, Strepsils lozenges and certain products within the Nurofen range due to a lower incidence of colds and flu.
A strong period for heartburn relief Gaviscon was offset by weak sales of decongestant Mucinex, Strepsils lozenges and some products in the Nurofen range due to "lower incidence" of colds and flu.
The first steps towards Advisory OTCs have been taken, and Rx-to-OTC switches have created megabrands like Claritin, Mucinex and Prilosec.
The product will be packaged and marketed under store and proprietary brands and will be a high quality, value alternative to Mucinex D tablets.
Schiff's portfolio is an excellent fit with our strategic focus on health and hygiene, where in health care in the USA we already have Mucinex, Delsym, Cepacol and Durex as major brands.
Cough remedies in the US were revitalised by the rise of Mucinex, but with sales slowing down and generic competition preparing to take a further bite, new sources of growth are needed.
was the former CEO of Adams Respiratory Therapeutics, developer of the Mucinex brands.
brands - in particular Mucinex Fast Max (liquids and capsules) and
Other potential product launches include generic Toprol and several pending patent challenges with exclusivity such as Mucinex D.