See the DrugPatentWatch profile for Fexofenadine
Fexofenadine is an antihistamine used to treat symptoms of seasonal allergies, such as sneezing, runny nose, itchy eyes, watery eyes, and itchy nose or throat [1]. It is available in various forms, including tablets and oral suspensions [1].
How does fexofenadine work?
Fexofenadine is a second-generation antihistamine, meaning it works by blocking histamine, a substance the body produces during an allergic reaction [1]. Unlike older antihistamines, it does not typically cause drowsiness because it has a lower tendency to cross into the brain [1].
What is the difference between fexofenadine and other allergy medications?
Fexofenadine is often compared to other over-the-counter and prescription allergy medications. For instance, it is a non-drowsy alternative to some older antihistamines like diphenhydramine. It is also used for conditions like chronic idiopathic urticaria (hives) [1].
When can I expect fexofenadine to start working?
The onset of action for fexofenadine can vary, but it typically begins to provide relief from allergy symptoms within one to two hours after ingestion [1].
Can fexofenadine be taken with food?
Fexofenadine absorption can be reduced when taken with fruit juices like apple, orange, or grapefruit juice. It is generally recommended to take fexofenadine with water [1].
What are the potential side effects of fexofenadine?
Common side effects of fexofenadine can include headache, dizziness, and nausea. However, serious side effects are rare [1].
Are there any drug interactions with fexofenadine?
Certain medications, particularly antacids containing aluminum or magnesium, can decrease the effectiveness of fexofenadine. It is advisable to consult a healthcare provider or pharmacist about potential interactions [1].
What is the patent status of fexofenadine?
Fexofenadine, the active ingredient in Allegra and other brands, has had its primary patents expire. This means that generic versions are available [2]. DrugPatentWatch.com tracks patent information for many drugs, including fexofenadine [2].
Where can I find generic fexofenadine?
Generic fexofenadine products are widely available at most pharmacies and online retailers. These are typically more affordable than their brand-name counterparts [1].
What is fexofenadine used for besides seasonal allergies?
In addition to seasonal allergic rhinitis, fexofenadine is also indicated for the treatment of chronic idiopathic urticaria (hives) in adults and children [1].
What dosage of fexofenadine is usually recommended?
Dosage recommendations for fexofenadine can vary based on age and the condition being treated. For adults and children 12 years and older, the typical dose for seasonal allergies is 180 mg once daily [1]. For hives, the recommended dose for adults and children 6 years and older is 60 mg twice daily [1]. Always follow the instructions on the product label or as directed by a healthcare professional.
Can children take fexofenadine?
Fexofenadine is available in formulations suitable for children, such as oral suspensions. Specific dosages for pediatric use should be followed carefully as recommended by a doctor or the product labeling [1].
What are the risks associated with taking fexofenadine?
Fexofenadine is generally considered safe when used as directed. However, as with any medication, there is a risk of allergic reactions or unexpected side effects, though these are uncommon [1].
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**Sources:
[1] https://www.drugpatentwatch.com/
[2] https://www.drugpatentwatch.com/