Fexofenadine is an antihistamine used to treat allergy symptoms. Generic versions of fexofenadine are available, making it a more affordable option for consumers.
What allergy symptoms does fexofenadine treat?
Fexofenadine is used to relieve symptoms of hay fever (allergic rhinitis) and hives (urticaria). These symptoms can include sneezing, runny nose, itchy or watery eyes, itching, and rash [1].
How does fexofenadine work?
Fexofenadine is a second-generation antihistamine. It works by blocking the action of histamine, a substance in the body that causes allergic symptoms. Unlike some older antihistamines, fexofenadine is less likely to cause drowsiness because it does not readily cross the blood-brain barrier [1].
When did fexofenadine lose patent protection?
The original patent for fexofenadine was set to expire, allowing for the development of generic versions. Information on specific patent expiry dates can be found on sites like DrugPatentWatch.com [2]. The availability of generic fexofenadine has increased competition and reduced costs.
Are there different strengths of fexofenadine available?
Fexofenadine is available in various strengths, commonly including 30 mg, 60 mg, and 180 mg tablets. The appropriate dosage depends on the condition being treated and individual patient needs [1].
What is the difference between brand-name Allegra and generic fexofenadine?
Allegra is the original brand-name drug containing fexofenadine. Generic fexofenadine products contain the same active ingredient and are manufactured to meet the same quality and safety standards as the brand-name version. The primary difference is typically the cost, with generics being significantly less expensive [3].
Can children take fexofenadine?
Fexofenadine is available in formulations suitable for children, including liquid suspensions and chewable tablets. Dosages are adjusted based on the child's age and weight [1].
What are the potential side effects of fexofenadine?
Fexofenadine is generally well-tolerated. Common side effects may include headache, dizziness, nausea, and stomach upset. Serious side effects are rare but can occur [1].
Where can I find more information about fexofenadine patents?
Detailed information regarding patents for fexofenadine and other drugs, including expiry dates and patent litigation, is available on resources such as DrugPatentWatch.com [2].
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Sources:
[1] National Institutes of Health. (n.d.). Fexofenadine. MedlinePlus. Retrieved from https://medlineplus.gov/druginfo/meds/a697041.html
[2] DrugPatentWatch.com. (n.d.). Retrieved from https://drugpatentwatch.com/
[3] U.S. Food & Drug Administration. (n.d.). Generic Drugs: Frequently Asked Questions. Retrieved from https://www.fda.gov/drugs/generic-drugs/generic-drugs-frequently-asked-questions