Frequently Asked Questions
Find answers to commonly asked questions about sinus congestion and Entex® LA by clicking on the desired question below.
About Sinus Congestion
How common is sinus congestion?
Sinus or nasal congestion is a troublesome complaint associated with colds, sinusitis, and/or allergies. It is estimated that every adult suffers from two to five colds a year.
How do you treat sinus congestion?
Decongestants help to relieve sinus congestion. Decongestants relieve the swelling by narrowing the blood vessels that supply the nose. This reduces the blood supply to the swollen membranes, causing the membranes to shrink.
Using Entex® LA
Why use Entex® LA?
For people suffering from sinus congestion and poor bronchial drainage due to colds, sinusitis, and/or allergies, Entex® LA can be an effective choice. Entex® LA is the only sinus decongestant combination that contains pseudoephedrine and guaifenesin in a long-acting oral tablet. Entex® LA reduces nasal congestion by helping to decongest sinus openings and encourage nasal and/or sinus drainage. Entex® LA helps bronchial tubes by thinning mucus and loosening phlegm, especially when used with other ways to stay hydrated like drinking water and increasing air humidity for productive or wet coughs. Entex® LA provides non-drowsy, 12 hour relief of your sinus congestion and helps bronchial tubes by thinning mucus and loosening phlegm - for productive, wet coughs due to colds, sinusitis and/or allergies.*
How should I take Entex® LA?
Adults and children 12 years of age and over are recommended to take one (1) tablet twice daily (every 12 hours), up to a maximum of 2 tablets daily. Do not exceed the single and maximum daily dose. Do not use for longer than 7 days. Entex® LA is not recommended for children under 12 years of age. This dosing schedule should provide non-drowsy, 12-hour relief of sinus congestion and help bronchial drainage due to colds, sinusitis, and/or allergies, when taken in conjunction with other measures for productive, wet coughs, such as ensuring hydration by drinking water and increasing air humidity, as needed. Entex® LA should not be crushed or chewed prior to swallowing.1
Who should not take Entex® LA?
Entex® LA should not be taken by people that have high blood pressure, peripheral vascular disease, heart or thyroid disease, prostate disease, glaucoma, diabetes, persistent/chronic cough; or by pregnant/nursing women, or by people taking high blood pressure medication or an antidepressant containing a monoamine oxidase inhibitor, except under the advice and supervision of a physician. Please check with your physician or pharmacist for further information.
Important Patient Information:
- Consult a physician if symptoms worsen, last for more than a week, are accompanied by high fever (>38oC) or the production of thick yellow/green phlegm, or if you have peripheral vascular disease, glaucoma, high blood pressure, heart or thyroid disease, diabetes or prostate disease.
- Do not use if you are allergic to any of the ingredients. Discontinue use if allergic reactions such as wheezing, rash or itching develop.
- Do not give with any other cough and cold medications since harm may occur, unless recommended by a healthcare practitioner.
- Consult a healthcare practitioner prior to combining with any other medications, including natural health products, prescription drugs or nonprescription drugs.
- Do not exceed recommended single and maximum daily dose. Overdose may result in harm.
In Case of Overdose: Call a Regional Poison Control Centre and/or your doctor and/or your local emergency number immediately, or go to your local hospital emergency, even if you do not notice any signs or symptoms. Keep all medicines out of the reach of children.
Do not crush or chew tablets.
If Entex® LA is taken close to bedtime, will it keep me up at night?
Entex® LA contains pseudoephedrine and may affect ones ability to sleep. This effect is highly variable. Please consult your physician or pharmacist regarding reducing your dose to half a tablet. A benefit of Entex® LA is its flexible dosing. Entex® LA can be broken in half along the score without disturbing the 12-hour time-release mechanism. Entex® LA should not be crushed or chewed prior to swallowing.
Why is Entex® LA's tablet scored?
Entex® LA tablets offer flexible dosing. Entex® LA can be broken in half along the score without disturbing the 12-hour time-release mechanism. Entex® LA's dose can be reduced to half a tablet if desired. Entex® LA should not be crushed or chewed prior to swallowing.
How much does Entex® LA cost?
The suggested retail price is $8.99 for 16 tablets or $0.56 per tablet. When Entex® LA is taken every 12 hours, the total daily cost is $1.12. Also please visit the sign-up page to take advantage of special offers on Entex® LA.
Is Entex® LA covered by drug plans?
Some private drug plans cover Entex® LA. Please check with your plans Benefits Manager.
1 Canadian Centre for Occupation Health and Safety. OSH Answers: Common Cold. April 1999.
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