Antihistamine therapy in allergic rhinitis.

Area of Science:

• Allergy and Immunology
• Pharmacology

Background:

• Allergic rhinitis is a prevalent condition causing significant morbidity and healthcare costs.
• Histamine's effects on tissues are the primary cause of allergic rhinitis symptoms.
• Antihistamines are the standard treatment for allergic rhinitis.

Purpose of the Study:

• To review current and future pharmacotherapy options for allergic rhinitis.
• To provide guidance on selecting appropriate antihistamine agents.

Main Methods:

• Comprehensive review of available clinical trials on antihistamine therapy.
• Analysis of efficacy and side effect profiles of different antihistamine generations.

Main Results:

• Second-generation antihistamines offer a reduced risk of sedation compared to older agents.
• Chlorpheniramine is suggested as a rational initial choice based on clinical data.
• Nonsedating antihistamines are recommended for patients requiring alertness.

Conclusions:

• Antihistamine selection for allergic rhinitis should be guided by clinical evidence and patient needs.
• The choice between sedating and nonsedating antihistamines depends on the patient's daily activities and safety considerations.