Generic Name: pseudoephedrine (SOO-doe-e-FED-rin)
Brand Name: Entex
Entex suspension is used for:
Relieving congestion due to colds, flu, and allergies. It may also be used for other conditions as determined by your doctor.
Entex suspension is a decongestant. It works by reducing swelling and constricting blood vessels in the nasal passages, allowing you to breathe more easily.
Do NOT use Entex suspension if:
- you are allergic to any ingredient in Entex suspension
- you are taking furazolidone or have taken a monoamine oxidase inhibitor (MAOI) (eg, phenelzine) in the last 14 days
- you have severe high blood pressure, severe heart blood vessel disease, a rapid heartbeat, or severe heart problems
Contact your doctor or health care provider right away if any of these apply to you.
Before using Entex suspension:
Some medical conditions may interact with Entex suspension. Tell your doctor or pharmacist if you have any medical conditions, especially if any of the following apply to you:
- if you are pregnant, planning to become pregnant, or are breast-feeding
- if you are taking any prescription or nonprescription medicine, herbal preparation, or dietary supplement
- if you have allergies to medicines, foods, or other substances
- if you have a history of heart problems, diabetes, glaucoma, an enlarged prostate or other prostate problems, adrenal gland problems, high blood pressure, seizures, stroke, blood vessel problems, or an overactive thyroid
Some MEDICINES MAY INTERACT with Entex suspension. Tell your health care provider if you are taking any other medicines, especially any of the following:
- Rauwolfia derivatives (eg, reserpine) because they may decrease Entex suspension's effectiveness
- Beta-blockers (eg, propranolol), cocaine, furazolidone, indomethacin, MAOIs (eg, phenelzine), methyldopa, oxytocic medicines (eg, oxytocin), rauwolfia derivatives (eg, reserpine), or tricyclic antidepressants (eg, amitriptyline) because the risk of Entex suspension's side effects may be increased
- Bromocriptine, catechol-O-methyltransferase (COMT) inhibitors (eg, entacapone), digoxin, or droxidopa because the the risk of their side effects may be increased by Entex suspension
- Guanadrel, guanethidine, mecamylamine, methyldopa, or reserpine because their effectiveness may be decreased by Entex suspension
This may not be a complete list of all interactions that may occur. Ask your health care provider if Entex suspension may interact with other medicines that you take. Check with your health care provider before you start, stop, or change the dose of any medicine.
How to use Entex suspension:
Use Entex suspension as directed by your doctor. Check the label on the medicine for exact dosing instructions.
- Take Entex suspension by mouth with food, water, or milk to minimize stomach irritation.
- Shake well before each use.
- Use a measuring device marked for medicine dosing. Ask your pharmacist for help if you are unsure of how to measure your dose.
- If you miss a dose of Entex suspension and are taking it regularly, take it as soon as possible. If it is almost time for your next dose, skip the missed dose and go back to your regular dosing schedule. Do not take 2 doses at once.
Ask your health care provider any questions you may have about how to use Entex suspension.
Important safety information:
- Entex suspension may cause dizziness. These effects may be worse if you take it with alcohol or certain medicines. Use Entex suspension with caution. Do not drive or perform other possibly unsafe tasks until you know how you react to it.
- Avoid alcohol while you are using Entex suspension.
- If your symptoms do not improve within 7 days or if you develop a high fever, check with your doctor.
- Do not take more than the recommended dose or use for longer than prescribed without checking with your doctor.
- If you have trouble sleeping, ask your pharmacist or doctor about the best time to take Entex suspension.
- Do not take diet or appetite control medicines while you are taking Entex suspension without first checking with your doctor.
- Entex suspension has pseudoephedrine in it. Before you start any new medicine, check the label to see if it has pseudoephedrine in it too. If it does or if you are not sure, check with your doctor or pharmacist.
- Some of these products contain phenylalanine. If you must have a diet that is low in phenylalanine, ask your pharmacist if it is in your product.
- Diabetes patients - Entex suspension may affect your blood sugar. Check blood sugar levels closely. Ask your doctor before adjusting the dose of your diabetes medicine.
- Use Entex suspension with caution in the ELDERLY; they may be more sensitive to its effects.
- Entex suspension should be used with extreme caution in CHILDREN younger than 2 years old; safety and effectiveness in these children have not been confirmed.
- PREGNANCY and BREAST-FEEDING: If you become pregnant, contact your doctor. You will need to discuss the benefits and risks of using Entex suspension while you are pregnant. It is not known if this medicine is found in breast milk. If you are or will be breast-feeding while you are using Entex suspension, check with your doctor. Discuss any possible risks to your baby.
Possible side effects of Entex suspension:
All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome:
Seek medical attention right away if any of these SEVERE side effects occur:
Dizziness; headache; nausea; nervousness; restlessness; sleeplessness; stomach irritation.
Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); fast or irregular heartbeat; hallucinations; seizures; severe dizziness or headache; severe or persistent nervousness, restlessness, or trouble sleeping; trouble urinating.
This is not a complete list of all side effects that may occur. If you have questions about side effects, contact your health care provider. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088. You may also report side effects at http://www.fda.gov/medwatch .
If OVERDOSE is suspected:
Contact 1-800-222-1222 (the American Association of Poison Control Centers), your local poison control center, or emergency room immediately. Symptoms may include confusion; hallucinations; irregular or unusually slow or rapid heartbeat; rapid breathing; seizures.Proper storage of Entex suspension:
Store Entex suspension at room temperature, between 59 and 77 degrees F (15 and 25 degrees C). Store away from heat, moisture, and light. Do not store in the bathroom. Keep Entex suspension out of the reach of children and away from pets.
- If you have any questions about Entex suspension, please talk with your doctor, pharmacist, or other health care provider.
- Entex suspension is to be used only by the patient for whom it is prescribed. Do not share it with other people.
- If your symptoms do not improve or if they become worse, check with your doctor.
- Check with your pharmacist about how to dispose of unused medicine.
This information should not be used to decide whether or not to take Entex suspension or any other medicine. Only your health care provider has the knowledge and training to decide which medicines are right for you. This information does not endorse any medicine as safe, effective, or approved for treating any patient or health condition. This is only a brief summary of general information about Entex suspension. It does NOT include all information about the possible uses, directions, warnings, precautions, interactions, adverse effects, or risks that may apply to Entex suspension. This information is not specific medical advice and does not replace information you receive from your health care provider. You must talk with your healthcare provider for complete information about the risks and benefits of using Entex suspension.
Disclaimer: This information should not be used to decide whether or not to take this medicine or any other medicine. Only your health care provider has the knowledge and training to decide which medicines are right for you. This information does not endorse any medicine as safe, effective, or approved for treating any patient or health condition. This is only a brief summary of general information about this medicine. It does NOT include all information about the possible uses, directions, warnings, precautions, interactions, adverse effects, or risks that may apply to this medicine. This information is not specific medical advice and does not replace information you receive from your health care provider. You must talk with your healthcare provider for complete information about the risks and benefits of using this medicine.
More about Entex (pseudoephedrine)
- Side Effects
- During Pregnancy or Breastfeeding
- Dosage Information
- Drug Interactions
- Support Group
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- Drug class: decongestants