Allegra - Fexofenadine

What is it?

Composition

Allegra contains the main active ingredient - fexofenadine. This substance belongs to the class of second-generation antihistamines and has the ability to block H1-histamine receptors, thereby preventing the development of an allergic reaction.

The drug also contains excipients that ensure the stability and effectiveness of the drug:

• Microcrystalline cellulose
• Corn starch
• Povidone
• Magnesium stearate
• Titanium dioxide
• Hypromellose

These components help the tablet maintain its shape, improve the absorption and stability of the active substance, and extend the shelf life of the drug.

How to use?

Allegra is recommended to be taken as directed by your doctor or as directed on the package. Usually, the drug is taken once a day, at the same time, regardless of food intake, to maintain a stable level of the active substance in the blood.

For maximum effect, it is recommended to follow these steps:

1. Take the tablet whole with plenty of water.
2. Do not chew or crush the tablet, so as not to reduce the effectiveness of the drug.
3. If you miss a dose, take it as soon as possible, but if it is almost time for your next dose, skip the missed dose. Do not double the dose.

Allegra can be taken both long-term and as needed to relieve symptoms, but the duration of treatment should be determined by your doctor depending on the severity of the allergy and the response to treatment.

How does it work?

Allegra works by blocking the H1-histamine receptors in the body. Histamine is a substance that is released by cells in response to an allergen and causes allergy symptoms such as itching, swelling, runny nose and watery eyes. When fexofenadine, the active ingredient in Allegra, binds to these receptors, it prevents histamine from interacting with cells, which in turn reduces or completely eliminates allergy symptoms.

A special feature of fexofenadine is that it does not penetrate the blood-brain barrier in significant quantities, which means there is no sedative effect. This is important, as many first-generation antihistamines cause drowsiness, whereas Allegra allows you to remain alert and focused throughout the day. The drug begins to work approximately 1-2 hours after taking and provides long-lasting relief of symptoms that lasts up to 24 hours.

Indications

Allegra is used to treat a variety of allergic conditions that cause discomfort and affect quality of life. This drug is prescribed to relieve the symptoms of both seasonal and year-round allergies, as well as chronic allergic reactions on the skin.

The main indications for the use of Allegra include:

• Seasonal allergic rhinitis (hay fever), which manifests itself in the form of sneezing, itchy nose, watery eyes and nasal congestion.
• Year-round allergic rhinitis caused by allergens such as dust, animal hair or mold.
• Chronic idiopathic urticaria, characterized by persistent itching and rashes on the skin.

The drug helps to reduce the severity of these symptoms and improve the patients overall well-being, allowing you to lead a normal life even during periods of exacerbation of allergies.

Contraindications

Despite the high efficiency of Allegra, there are certain situations in which its use is not recommended. The drug may be contraindicated due to the presence of certain medical conditions or individual intolerance to the components.

The main contraindications include:

• Hypersensitivity or allergic reaction to fexofenadine or other components of the drug.
• Severe renal failure, since the drug is excreted through the kidneys, and their dysfunction can lead to the accumulation of the active substance in the body.
• Pregnancy and lactation, since the safety of Allegra during these periods has not been fully studied.
• Age up to 12 years for tablets with a dosage of 120 and 180 mg, since safety and effectiveness in young children have not been established.

Before starting to use Allegra, you must consult a doctor, especially if the patient has concomitant diseases or takes other medications, to avoid possible complications and interactions.

Side effects

Although Allegra is generally well tolerated, some patients may experience side effects. These adverse reactions are usually minor and temporary, but it is important to be aware of possible manifestations.

The most common side effects include:

• Headaches, which may occur in the first days of taking the drug.
• Nausea, which usually goes away on its own and does not require discontinuing the drug.
• Dizziness, associated with the individual bodys reaction to the drug.
• Drowsiness, although it is less common compared to first-generation antihistamines.

If side effects increase or cause significant concern, it is recommended to consult a doctor. In rare cases, more serious reactions such as rash or swelling may occur, requiring immediate medical attention.