What side effects are possible with this medication?
A side effect is an unwanted response to a medication when it is taken in normal doses. It can be mild or severe, temporary or permanent, but does not occur in everyone. The following side effects have been reported by at least 1% of people
taking this medication. If you develop any of these side effects (or any other side effects not listed here) or they change in intensity, speak to your doctor or pharmacist
for advice on managing them and on the risks and benefits of the medication.
- abdominal pain
- anxiety
- back pain
- dizziness
- dry mouth
- headache
- heartburn
- irregular or rapid heartbeat
- nausea
- nervousness, agitation, or restlessness
- shakiness or tremor
- throat irritation
- trouble sleeping
- upper respiratory infection
Click here to learn about serious side effects that can potentially occur with any medication. These examples are provided for information purposes only and are not meant to be exhaustive. Always consult your doctor for sound medical advice specific to your particular medication and treatment.
If you experience a serious side effect, you or your doctor may send a report to the Food and Drug Administration's (FDA) MedWatch Adverse Event Reporting program online or by phone at 1-800-332-1088.
Are there any other precautions or warnings for this medication?
Before you begin taking a medication, be sure to inform your doctor of any medical conditions or allergies you may have, any medications you are taking, whether you are pregnant or breast-feeding, and any other significant facts about your health. These
factors may affect how you should take this medication.
FDA ADVISORY
April 2010
The FDA has issued new information concerning the use of Allegra-D® (fexofenadine - pseudoephedrine). To read the full FDA Advisory, visit the FDA's web site at www.fda.gov.
Kidney disease: If you have kidney disease you may need a lower dose. If you have kidney disease, check with your doctor.
Medical conditions: If you have the following conditions you should be closely monitored by your doctor while taking decongestants such as pseudoephedrine:
- diabetes
- enlarged prostate
- glaucoma
- heart disease
- high blood pressure
- high intraocular (inside the eye) pressure
- kidney disease
- overactive thyroid
Pregnancy: This medication should not be used during pregnancy unless the benefits outweigh the risks. If you become pregnant while taking this medication, contact your doctor immediately to talk about the benefits and risks of using this medication.
Breast-feeding: It is not known if fexofenadine passes into breast milk. Women should not breast-feed while they are taking this medication.
Children: The safety and effectiveness of this medication have not been established for children less than 12 years of age.
Seniors: Seniors should use this medication with caution, as they are more likely to experience the side effects of pseudoephedrine.
What other drugs could interact with this medication?
There may be an interaction between fexofenadine - pseudoephedrine and any of the following:
- antacids containing both aluminum and magnesium
- appetite suppressants
- blood pressure medications
- digoxin
- erythromycin
- ketoconazole
- MAO inhibitors (e.g., phenelzine, tranylcypromine)
- other decongestants
- stimulants (e.g., methylphenidate, dextroamphetamine)
If you are taking any of these medications, speak with your doctor or pharmacist. Depending on your specific circumstances, your doctor may want you to:
- stop taking one of the medications,
- change one of the medications to another,
- change how you are taking one or both of the medications, or
- leave everything as is.
An interaction between two medications does not always mean that you must stop taking one of them. Speak to your doctor about how any drug interactions are being managed or should be managed.
Medications other than those listed above may interact with this medication. Tell your doctor or prescriber about all prescription, over-the-counter (non-prescription), and herbal medications you are taking. Also tell them about any supplements you
take. Since caffeine, alcohol, the nicotine from cigarettes, or street drugs can affect the action of many medications, you should let your prescriber know if you use them.