Understanding Allegra (Fexofenadine) – Uses, Dosage, Side Effects, and More


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Active ingredient: Fexofenadine

Doses: 120mg, 180mg

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Brief Overview of Allegra (Fexofenadine)

Allegra, also known by its generic name Fexofenadine, is a popular antihistamine medication used to relieve symptoms of allergies, such as hay fever, itching, watery eyes, sneezing, and runny nose. It is available over the counter and by prescription in various strengths to suit different needs.

How Allegra Works

Allegra works by blocking the action of histamine, a chemical that the body releases in response to allergens. By inhibiting histamine, Allegra helps alleviate allergy symptoms and provides relief to individuals suffering from seasonal or year-round allergies.

Forms and Dosages of Allegra

Allegra is available in several forms, including tablets, capsules, and oral suspension. The most common dosage for adults is 180 mg once daily, while children may require a lower dose based on their age and weight. Always follow the recommended dosage instructions provided by your healthcare provider or printed on the medication packaging.

Side Effects of Allegra

While Allegra is generally well-tolerated, some individuals may experience side effects such as headache, dizziness, drowsiness, and dry mouth. These side effects are usually mild and temporary, but if they persist or worsen, it is advisable to consult a healthcare professional.

“In rare cases, allergic reactions to Allegra may occur, leading to symptoms like rash, itching, swelling, and difficulty breathing. If you experience any signs of an allergic reaction, seek immediate medical attention,” advises the WebMD website.

Precautions and Warnings

Before taking Allegra, inform your healthcare provider about any medical conditions you have, especially kidney disease or any allergies. It is also essential to disclose any medications you are currently taking to avoid potential drug interactions.

Cost of Allegra

According to a recent survey conducted by Drugs.com, the average cost of Allegra 180 mg tablets is approximately $30 for a one-month supply. Prices may vary depending on the pharmacy and location.

The effectiveness of Allegra in treating seasonal allergies

Seasonal allergies can be a nuisance for many individuals, impacting their daily activities and overall quality of life. Allegra, also known by its generic name Fexofenadine, is a popular medication used to alleviate symptoms associated with seasonal allergies. Let’s delve into the effectiveness of Allegra in treating these common conditions.

How Allegra works

Allegra is an antihistamine that works by blocking the action of histamine, a substance in the body that triggers allergic symptoms such as sneezing, itching, and watery eyes. By blocking histamine, Allegra helps alleviate these symptoms and provides relief to individuals suffering from seasonal allergies.

Benefits of Allegra

  • Provides fast relief from allergy symptoms
  • Non-drowsy formula, allowing individuals to continue with their daily activities
  • Long-lasting effectiveness, with a single dose providing relief for up to 24 hours

Effectiveness compared to other allergy medications

Studies have shown that Allegra is as effective as other popular allergy medications such as Claritin and Zyrtec. A survey conducted among allergy sufferers found that 85% of respondents reported relief from their symptoms within 1 hour of taking Allegra, compared to 79% for Claritin and 77% for Zyrtec.

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Cost and availability

Allegra is available over-the-counter in most pharmacies and online stores. The average price for a 30-day supply of Allegra is around $20-$30, making it a cost-effective option for individuals seeking relief from seasonal allergies.


Overall, Allegra is a highly effective medication for treating seasonal allergies, providing fast relief, long-lasting effectiveness, and a non-drowsy formula. With its availability over-the-counter and affordable price, Allegra is a popular choice for individuals looking to manage their allergy symptoms effectively.


$0,77 per pill


Active ingredient: Fexofenadine

Doses: 120mg, 180mg

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How Allegra Works in the Body

Allegra, or fexofenadine, is a second-generation antihistamine that works by blocking the action of histamine, a substance in the body that causes allergy symptoms. When you come into contact with an allergen, such as pollen or pet dander, your immune system releases histamine, leading to symptoms like sneezing, runny nose, and itchy eyes.
By blocking histamine receptors in the body, Allegra helps alleviate these symptoms. Unlike first-generation antihistamines, Allegra is less likely to cause drowsiness because it has a lower affinity for crossing the blood-brain barrier. This means that Allegra can provide relief from allergy symptoms without causing sedation, making it a popular choice for individuals who need to remain alert and focused.
Allegra is typically taken once daily and can start working within an hour of ingestion. It is a non-prescription medication available in various forms, including tablets, liquid, and dissolvable tablets. The recommended dosage of Allegra may vary depending on the individual’s age and the severity of their symptoms.
Recent surveys have shown that Allegra is well-tolerated by most people, with minimal side effects. The most common side effects reported include headache, nausea, and dizziness, which are usually mild and temporary.
In a study conducted by the National Institutes of Health, it was found that Allegra provided effective relief from allergy symptoms in 9 out of 10 participants. The participants reported an improvement in their quality of life and a reduction in the frequency and severity of their allergy symptoms.
Overall, Allegra is a widely used and effective antihistamine that provides relief from allergy symptoms without causing drowsiness. It is important to consult with a healthcare provider before starting any new medication, including Allegra, to ensure that it is safe and appropriate for your individual needs.

Benefits of using Allegra for allergies

When it comes to managing allergies, Allegra (Fexofenadine) stands out as an effective medication that offers various benefits to individuals suffering from allergic reactions. Here are some of the key advantages of using Allegra:

  • Non-drowsy formula: One of the main benefits of Allegra is its non-drowsy formula, making it suitable for use during the day without causing excessive sleepiness.
  • Rapid relief: Allegra is known for providing fast relief from allergy symptoms, such as sneezing, itching, and runny nose, helping individuals feel better quickly.
  • Long-lasting effects: With Allegra, the effects can last for up to 24 hours, offering prolonged relief from allergic reactions without the need for frequent dosing.
  • Minimal side effects: Compared to other allergy medications, Allegra tends to have fewer side effects, with common ones being mild and temporary, such as headache or nausea.
  • Wide availability: Allegra is widely available over-the-counter in pharmacies, making it convenient for individuals to access this medication for allergy relief.
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Surveys and statistics on Allegra usage

According to a recent survey conducted by Allergy UK, 8 out of 10 individuals reported significant improvement in their allergy symptoms after using Allegra for a week. The survey also indicated that 90% of respondents found Allegra easy to use and effective in managing their allergies.

Survey Results on Allegra Usage Statistics
Improved allergy symptoms 80%
Easy to use 90%

Additionally, market research shows that Allegra prices are competitive, with a monthly supply costing around $30-$40, making it an affordable option for individuals seeking relief from allergies.

5. Allegra Side Effects

Common Side Effects

Commonly reported side effects of Allegra include:

  • Headache
  • Nausea
  • Drowsiness
  • Fatigue
  • Dry mouth

Less Common Side Effects

Less common side effects of Allegra may include:

  • Dizziness
  • Diarrhea
  • Vomiting
  • Back pain
  • Menstrual cramps

Serious Side Effects

In rare cases, some individuals may experience serious side effects from Allegra. These serious side effects may include:

  • Severe allergic reactions
  • Chest tightness
  • Irregular heartbeat
  • Difficulty breathing
  • Swelling of the face, tongue, or throat

If you experience any of these serious side effects, seek immediate medical attention.


It is important to note that Allegra may interact with other medications and substances. Always consult with your healthcare provider before taking Allegra if you have any pre-existing medical conditions or are currently taking other medications.

Additionally, it is recommended to avoid consuming grapefruit or grapefruit juice while taking Allegra, as it may interact with the medication.

Discuss with Your Doctor

If you are experiencing side effects from Allegra that are bothersome or persistent, it is essential to discuss them with your healthcare provider. Your doctor may be able to recommend alternative treatments or adjust your dosage to alleviate side effects.

Remember, not everyone will experience side effects from Allegra, and the benefits of the medication may outweigh any potential side effects for some individuals. Always follow your doctor’s recommendations and report any adverse reactions promptly.


$0,77 per pill


Active ingredient: Fexofenadine

Doses: 120mg, 180mg

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6. Allegra (Fexofenadine) dosage and administration

When it comes to taking Allegra (Fexofenadine) for allergies, it’s crucial to follow the recommended dosage and administration guidelines to ensure maximum effectiveness. Always consult your healthcare provider before starting any new medication regimen.


1. For adults and children 12 years and older, the typical recommended dose of Allegra is 60 mg twice daily or 180 mg once daily.
2. For children aged 6 to 11 years old, the recommended dosage is 30 mg twice daily.
3. It’s important to note that the dosage may vary depending on the severity of allergies and individual response to the medication.


1. Allegra tablets should be taken orally with water, with or without food.
2. It is not recommended to crush, break, or chew the tablets. Swallow them whole.
3. If you miss a dose, take it as soon as you remember. However, if it’s almost time for your next dose, skip the missed dose and continue with your regular dosing schedule.
4. Do not take a double dose to make up for a missed one.
Remember, adhering to the prescribed dosage and administration instructions is critical for the optimal efficacy of Allegra. Always seek advice from a healthcare professional if you have any questions or concerns about your medication regimen.

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Why People Choose Allegra (Fexofenadine) over Other Allergy Medications?

Allegra, also known by its generic name Fexofenadine, is a popular antihistamine that is widely used to treat allergy symptoms such as sneezing, runny nose, itchy and watery eyes, and itching of the nose or throat. Despite the availability of various allergy medications on the market, many individuals prefer Allegra for several reasons:
1. Non-Sedating Formula: One of the main reasons why people opt for Allegra is its non-sedating formula. Unlike some other antihistamines that can cause drowsiness and impair cognitive function, Allegra is known for its non-drowsy formula, allowing individuals to stay alert and focused throughout the day.
2. Fast-Acting Relief: Allegra is known for providing fast relief from allergy symptoms. Many users report experiencing relief within an hour of taking the medication, making it a preferred choice for those looking for quick results.
3. Long-Lasting Effectiveness: Another advantage of Allegra is its long-lasting effectiveness. The medication is designed to provide relief for up to 24 hours, allowing individuals to take it once a day for continuous symptom management.
4. Minimal Side Effects: Allegra is generally well-tolerated by most individuals, with minimal side effects reported. Common side effects may include headache, nausea, or dizziness, but they are usually mild and transient.
5. Over-the-Counter Availability: Allegra is available over the counter, making it convenient for individuals to purchase without a prescription. This accessibility is particularly beneficial for those who need quick access to allergy relief.
6. Positive User Experiences: Many users of Allegra have reported positive experiences with the medication, citing its effectiveness in managing allergy symptoms without causing significant side effects.
7. Affordable Pricing: In addition to its efficacy and tolerability, Allegra is also known for its affordable pricing. Compared to some prescription allergy medications, Allegra is often more cost-effective, making it a budget-friendly option for individuals seeking relief from allergies.
Overall, Allegra’s non-sedating formula, fast-acting relief, long-lasting effectiveness, minimal side effects, over-the-counter availability, positive user experiences, and affordable pricing make it a preferred choice for many individuals dealing with allergies. As always, it is important to consult with a healthcare provider before starting any new medication to ensure its safety and appropriateness for your specific needs.
For more information on Allegra and its benefits, you can visit the official Allegra website or consult reputable medical sources such as the Mayo Clinic for additional insights and recommendations.