Allegra-D 12 Hour
Generic Name: Fexofenadine and Pseudoephedrine (feks oh FEN a deen & soo doe e FED rin)
Brand Name: Allegra-D 12 Hour, Allegra-D 24 Hour
Medically reviewed by Drugs.com. Last updated on Aug 7, 2019.
Uses of Allegra-D 12 Hour:
- It is used to treat nose stuffiness.
- It is used to ease allergy signs.
What do I need to tell my doctor BEFORE I take Allegra-D 12 Hour?
- If you have an allergy to fexofenadine, pseudoephedrine, or any other part of Allegra-D 12 Hour (fexofenadine and pseudoephedrine).
- If you are allergic to Allegra-D 12 Hour (fexofenadine and pseudoephedrine); any part of Allegra-D 12 Hour (fexofenadine and pseudoephedrine); or any other drugs, foods, or substances. Tell your doctor about the allergy and what signs you had.
- If you have trouble swallowing.
- If you have taken certain drugs for depression or Parkinson's disease in the last 14 days. This includes isocarboxazid, phenelzine, tranylcypromine, selegiline, or rasagiline. Very high blood pressure may happen.
- If you are taking any of these drugs: Linezolid or methylene blue.
This is not a list of all drugs or health problems that interact with Allegra-D 12 Hour (fexofenadine and pseudoephedrine).
Tell your doctor and pharmacist about all of your drugs (prescription or OTC, natural products, vitamins) and health problems. You must check to make sure that it is safe for you to take Allegra-D 12 Hour (fexofenadine and pseudoephedrine) with all of your drugs and health problems. Do not start, stop, or change the dose of any drug without checking with your doctor.
What are some things I need to know or do while I take Allegra-D 12 Hour?
- Tell all of your health care providers that you take Allegra-D 12 Hour (fexofenadine and pseudoephedrine). This includes your doctors, nurses, pharmacists, and dentists.
- Do not take more than what your doctor told you to take. Taking more than you are told may raise your chance of very bad side effects.
- Do not take Allegra-D 12 Hour (fexofenadine and pseudoephedrine) for longer than you were told by your doctor.
- Avoid driving and doing other tasks or actions that call for you to be alert until you see how Allegra-D 12 Hour (fexofenadine and pseudoephedrine) affects you.
- Avoid drinking alcohol while taking Allegra-D 12 Hour (fexofenadine and pseudoephedrine).
- Talk with your doctor before you use other drugs and natural products that slow your actions.
- Use with care in children. Talk with the doctor.
- Do not give to a child younger than 12 years of age.
- If you are 65 or older, use Allegra-D 12 Hour (fexofenadine and pseudoephedrine) with care. You could have more side effects.
- Tell your doctor if you are pregnant, plan on getting pregnant, or are breast-feeding. You will need to talk about the benefits and risks to you and the baby.
How is this medicine (Allegra-D 12 Hour) best taken?
Use Allegra-D 12 Hour (fexofenadine and pseudoephedrine) as ordered by your doctor. Read all information given to you. Follow all instructions closely.
- Take on an empty stomach.
- Swallow whole. Do not chew, break, or crush.
- Do not take antacids that have magnesium or aluminum at the same time as Allegra-D 12 Hour (fexofenadine and pseudoephedrine). Talk with your doctor or pharmacist.
- Avoid taking Allegra-D 12 Hour (fexofenadine and pseudoephedrine) with fruit juice.
- You may see the tablet shell in your stool. This is normal and not a cause for concern.
What do I do if I miss a dose?
- If you take Allegra-D 12 Hour (fexofenadine and pseudoephedrine) on a regular basis, take a missed dose as soon as you think about it.
- If it is close to the time for your next dose, skip the missed dose and go back to your normal time.
- Do not take 2 doses at the same time or extra doses.
- Many times Allegra-D 12 Hour (fexofenadine and pseudoephedrine) is taken on an as needed basis. Do not take more often than told by the doctor.
What are some side effects that I need to call my doctor about right away?
WARNING/CAUTION: Even though it may be rare, some people may have very bad and sometimes deadly side effects when taking a drug. Tell your doctor or get medical help right away if you have any of the following signs or symptoms that may be related to a very bad side effect:
- Signs of an allergic reaction, like rash; hives; itching; red, swollen, blistered, or peeling skin with or without fever; wheezing; tightness in the chest or throat; trouble breathing, swallowing, or talking; unusual hoarseness; or swelling of the mouth, face, lips, tongue, or throat.
- Signs of high blood pressure like very bad headache or dizziness, passing out, or change in eyesight.
- Chest pain or pressure or a fast heartbeat.
- A heartbeat that does not feel normal.
- Shortness of breath.
What are some other side effects of Allegra-D 12 Hour?
All drugs may cause side effects. However, many people have no side effects or only have minor side effects. Call your doctor or get medical help if any of these side effects or any other side effects bother you or do not go away:
- Feeling nervous and excitable.
- Trouble sleeping.
- Feeling sleepy.
These are not all of the side effects that may occur. If you have questions about side effects, call your doctor. Call your doctor for medical advice about side effects.
You may report side effects to the FDA at 1-800-332-1088. You may also report side effects at https://www.fda.gov/medwatch.
If OVERDOSE is suspected:
If you think there has been an overdose, call your poison control center or get medical care right away. Be ready to tell or show what was taken, how much, and when it happened.
How do I store and/or throw out Allegra-D 12 Hour?
- Store at room temperature.
- Store in a dry place. Do not store in a bathroom.
- Keep all drugs in a safe place. Keep all drugs out of the reach of children and pets.
- Throw away unused or expired drugs. Do not flush down a toilet or pour down a drain unless you are told to do so. Check with your pharmacist if you have questions about the best way to throw out drugs. There may be drug take-back programs in your area.
Consumer information use
- If your symptoms or health problems do not get better or if they become worse, call your doctor.
- Do not share your drugs with others and do not take anyone else's drugs.
- Some drugs may have another patient information leaflet. Check with your pharmacist. If you have any questions about Allegra-D 12 Hour (fexofenadine and pseudoephedrine), please talk with your doctor, nurse, pharmacist, or other health care provider.
- If you think there has been an overdose, call your poison control center or get medical care right away. Be ready to tell or show what was taken, how much, and when it happened.
Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.
More about Allegra-D 12 Hour (fexofenadine / pseudoephedrine)
- Side Effects
- During Pregnancy
- Dosage Information
- Drug Images
- Drug Interactions
- En Español
- 11 Reviews
- Drug class: upper respiratory combinations