Entex La (Guaifenesin and Phenylephrine) Drug Overview and Uses for Patients and Caregivers at RxList

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May 27, 2012

Entex La

Sinus Infection »

Sinus infection facts

Sinus infections are caused by infections from a pathogenic microorganism (virus, bacterium, or fungus), which grows within a sinus and causes intermittent blockage of the sinus ostium.
Most people do not transmit sinus infections; most clinicians agree that except for rare instances, sinus infections are not contagious but arise from mainly viruses and bacteria that, by chance, contaminate a person who sinuses support their proliferation because of minor, and rarely, major abnormalities in the person's sinus tissue (for example, swelling, inflammation, abnormal mucus production, and rarely, facial or nasal trauma).
Sinusitis is inflammation of the air cavities within the passages of the nose. Sinusitis can be caused by infection, but also can be caused by allergies and chemical or particulate irritation of the sinuses.
Sinusitis may be classified in several ways such as acute sinus infec...

Read the Sinus Infection article »

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Entex La

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Entex LA
(phenylephrine hydrochloride and guaifenesin)

DRUG DESCRIPTION

Entex LA (guaifenesin and phenylephrine) is an orange, scored, long-acting tablet for oral administration and contains

phenylephrine hydrochloride ... 30mg

guaifenesin ....................................... 400 mg

in a special base to provide a prolonged therapeutic effect.

This product contains ingredients of the following therapeutic classes: decongestant and expectorant.

Phenylephrine Hydrochloride, a synthetic sympathomimetic agent, is a vasoconstrictor and pressor drug chemically related to epinephrine and ephedrine. Chemically, it is (-)-m-Hydroxy-a-[(methyl amino)methyl] benzyl alcohol hydrochloride. It has the following molecular formula C9H13NO2 · HCl with a molecular weight of 203.67.

Guaifenesin is an expectorant having the chemical name, 1,2-propanediol, 3-(2-methoxyphenoxy)-.

Entex LA (guaifenesin and phenylephrine) Inactive Ingredients: Each tablet contains carbomer 934 P, compressible sugar, docusate sodium, FD&C Yellow No. 6 Aluminum Lake, hydroxypropyl cellulose, hydroxypropyl methylcellulose, polyethylene glycol, silicon dioxide, stearic acid, titanium dioxide, and zinc stearate.

Last reviewed on RxList: 12/8/2004
This monograph has been modified to include the generic and brand name in many instances.