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Entex La Patient Information including If I Miss a Dose
In this Article
- What is guaifenesin and phenylephrine (Entex La)?
- What are the possible side effects of guaifenesin and phenylephrine?
- What is the most important information I should know about guaifenesin and phenylephrine?
- What should I discuss with my healthcare provider before taking guaifenesin and phenylephrine?
- How should I take guaifenesin and phenylephrine?
- What happens if I miss a dose?
- What happens if I overdose?
- What should I avoid while taking guaifenesin and phenylephrine?
- What other drugs will affect guaifenesin and phenylephrine?
- Where can I get more information?
What happens if I miss a dose?
Since cough or cold medicine is taken as 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.
Overdose symptoms may include nausea, vomiting, numbness or tingly feeling, dizziness, and feeling restless or nervous.
What should I avoid while taking guaifenesin and phenylephrine?
This medication may impair your thinking or reactions. Be careful if you drive or do anything that requires you to be alert.
Drinking alcohol can increase certain side effects of guaifenesin and phenylephrine.
Ask a doctor or pharmacist before using any other cough, cold, or allergy medicine. Guaifenesin and phenylephrine are contained in many combination medicines. Taking certain products together can cause you to get too much of a certain drug. Check the label to see if a medicine contains guaifenesin or phenylephrine.
Avoid taking this medication with diet pills, caffeine pills, or other stimulants (such as ADHD medications) without your doctor's advice. Taking a stimulant together with a decongestant can increase your risk of unpleasant side effects.
What other drugs will affect guaifenesin and phenylephrine?
Ask a doctor or pharmacist if it is safe for you to take guaifenesin and phenylephrine if you are also using any of the following drugs:
- medicines to treat high blood pressure;
- a beta-blocker such as atenolol (Tenormin, Tenoretic), carvedilol (Coreg), labetalol (Normodyne, Trandate), metoprolol (Dutoprol, Lopressor, Toprol), nadolol (Corgard), propranolol (Inderal, InnoPran), sotalol (Betapace), and others; or
- an antidepressant such as amitriptyline (Elavil, Vanatrip, Limbitrol), doxepin (Sinequan, Silenor), desipramine (Norpramin), imipramine (Janimine, Tofranil), nortriptyline (Pamelor), and others.
This list is not complete and other drugs may interact with guaifenesin and phenylephrine. 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.
Where can I get more information?
Your pharmacist can provide more information about guaifenesin and phenylephrine.
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.
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Additional Entex La Information
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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