Abstract
Background: By comparing the histamine impact to the instant response to an injected foreign protein in previously sensitized animals, one might hypothesize that histamine may be involved in this reaction. Through all four of the recognized types of histamine receptors, histamine is also essential for the control of immunological function and acute and chronic allergic inflammation.
Methods: Recent evidence points to anti-IgE antibodies and specific antibodies to cytokines like IL-4 or IL-5 that are associated with allergic inflammation as probable causes of Allergic Rhinitis. The therapeutic advantage of antihistamines is a decrease in allergy symptoms and any other allergy-related symptoms. We research the many diseases and dose forms in which antihistamines are used. Pediatric age groups have never been thoroughly studied for firstgeneration antihistamines. Oral antihistamines are suggested as the first line of therapy for people with mild to severe intermittent Allergic Rhinitis symptoms.
Results: Currently, approximately 100 different antihistamine-containing medicines and around 20 different H1-receptor antagonists are available for therapeutic use. Antihistamines of the second generation are more efficient and secure than those of the first generation. We conducted a research on the sedative and non-sedative effects of antihistamines used to treat various diseases.
Conclusion: The present investigation highlights the use of antihistamines in various diseases at different ages, their sedative and non-sedative effect, and their utility in treating insomnia based on their safety and current use among the patient population, as well as our observation.
Graphical Abstract
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