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Entex La

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Entex La

Entex LA
(phenylephrine hydrochloride and guaifenesin)

Entex La

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.

What are the possible side effects of guaifenesin and phenylephrine?

Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.

Stop using this medication and call your doctor at once if you have any of these serious side effects:

  • fast, pounding, or uneven heartbeat;
  • severe dizziness, anxiety, restless feeling, or nervousness;
  • easy bruising or bleeding, unusual weakness, fever, chills, body aches, flu symptoms;
  • dangerously high blood pressure (severe headache, blurred vision, buzzing in your ears,...

Read All Potential Side Effects and See Pictures of Entex La »

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

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Report Problems to the Food and Drug Administration

 

You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.


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