Wal-Fex Allergy

Wal-Fex Allergy
Wal-Fex Allergy
Wal-Fex Allergy is an over-the-counter medication primarily used to relieve symptoms associated with seasonal allergies, such as sneezing, runny or itchy nose, and itchy or watery eyes. The active ingredient in Wal-Fex Allergy is fexofenadine, which is a second-generation antihistamine. This means it is less likely to cause drowsiness compared to first-generation antihistamines.
Active Ingredient: Fexofenadine
Dosage Form: Tablet
Minimum Market Price: 0.1

Side Effects

Cough, fever, or stomach upset may occur. If any of these effects last or get worse, tell your doctor or pharmacist promptly.

If your doctor has prescribed this medication, remember that your doctor has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.

A very serious allergic reaction to this drug is rare. However, get medical help right away if you notice any symptoms of a serious allergic reaction, including: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing.

This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.

In the US – Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088 or at www.fda.gov/medwatch.

In Canada – Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.

How long does it take for this medicine to take effect?

Fexofenadine generally begins to take effect within 1 hour of oral administration. This rapid onset of action makes it effective for relieving acute allergy symptoms.

How long do the effects of this medicine last?

The effects of fexofenadine can last for 24 hours, which supports once-daily dosing for the relief of allergy symptoms. This long duration of action is characteristic of second-generation antihistamines, making them convenient for daily use.

Is it safe to consume alcohol while taking this medicine?

While there are no specific warnings against alcohol consumption with fexofenadine in the product labeling, it is generally advisable to avoid or limit alcohol intake while taking antihistamines. Alcohol can increase the risk of side effects such as drowsiness and dizziness, even though second-generation antihistamines like fexofenadine are less sedating than first-generation antihistamines.

Is this a habit forming medicine?

Fexofenadine is not habit-forming and does not have the potential for abuse or dependence. It is used for its pharmacological action in blocking histamine and does not produce euphoria or any psychoactive effects.

Can this medicine be taken during pregnancy?

Fexofenadine is classified as FDA Pregnancy Category C, indicating that animal studies have shown an adverse effect on the fetus and there are no adequate and well-controlled studies in humans, but potential benefits may warrant use of the drug in pregnant women despite potential risks. Pregnant women should only use fexofenadine if clearly needed and after consulting with a healthcare provider.

Can this medicine be taken while breast-feeding?

Fexofenadine is excreted in breast milk in small amounts. While there are limited data on the effects of fexofenadine on a nursing infant, the drug is considered relatively safe for use during breastfeeding when used in standard doses. However, it is advisable for nursing mothers to consult with a healthcare provider before using fexofenadine to weigh the potential benefits and risks.


Fexofenadine is an antihistamine used to relieve allergy symptoms such as watery eyes, runny nose, itching eyes/nose, sneezing, hives, and itching. It works by blocking a certain natural substance (histamine) that your body makes during an allergic reaction.

How to use Wal-Fex Allergy oral

If you are taking the over-the-counter product to self-treat, read all directions on the product package before taking this medication. If you have any questions, consult your pharmacist. If your doctor has prescribed this medication, take it as directed with or without food, usually once daily.

Take this medication with water. Do not take with fruit juices (such as apple, grapefruit, or orange) since they may decrease the absorption of this drug.

The dosage is based on your age, medical condition, and response to treatment. Do not increase your dose or take this medication more often than directed.

Do not take antacids containing aluminum and magnesium within 2 hours of taking this medication. These antacids can decrease the absorption of fexofenadine.

Tell your doctor if your condition does not improve or if it worsens.


Before taking fexofenadine, tell your doctor or pharmacist if you are allergic to it; or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.

Before using this medication, tell your doctor or pharmacist your medical history, especially of: kidney disease.

Before having surgery, tell your doctor or dentist about all the products you use (including prescription drugs, nonprescription drugs, and herbal products).

During pregnancy, this medication should be used only when clearly needed. Discuss the risks and benefits with your doctor.

This medication passes into breast milk. Consult your doctor before breast-feeding.


If someone has overdosed and has serious symptoms such as passing out or trouble breathing, call 911. Otherwise, call a poison control center right away. US residents can call their local poison control center at 1-800-222-1222. Canada residents can call a provincial poison control center.

Keep all medical and lab appointments.

If you miss a dose, take it as soon as you remember. If it is near the time of the next dose, skip the missed dose. Take your next dose at the regular time. Do not double the dose to catch up.

Store at room temperature away from light and moisture. Do not store in the bathroom. Different brands of this medication may have different storage needs. Check the product package for instructions on how to store your brand, or ask your pharmacist. Keep all medications away from children and pets.

Do not flush medications down the toilet or pour them into a drain unless instructed to do so. Properly discard this product when it is expired or no longer needed. Consult your pharmacist or local waste disposal company.


Drug interactions may change how your medications work or increase your risk for serious side effects. This document does not contain all possible drug interactions. Keep a list of all the products you use (including prescription/nonprescription drugs and herbal products) and share it with your doctor and pharmacist. Do not start, stop, or change the dosage of any medicines without your doctor's approval.

This medication may interfere with certain lab tests (such as allergy skin testing), possibly causing false test results. Make sure lab personnel and all your doctors know you use this drug.

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