There are two main types of antihistamines—first-generation and second-generation. First-generation antihistamines, such as chlorphenamine or promethazine, are short-acting. Side effects include ...

Antihistamines may be first generation (sedating) or second generation (nonsedating). These two types may lead to different reactions if a person takes too much. Second generation antihistamines ...

For patients with symptomatic chronic spontaneous urticaria after treatment with second-generation H 1-antihistamines, ...

Two phase 3 trials (REMIX-1 and REMIX-2) of remibrutinib in patients with chronic spontaneous urticaria who continued to have symptoms despite receiving second-generation H 1-antihistamines were ...

Medically reviewed by Corinne Savides Happel, MD If you're pregnant, you may wonder if it's safe to use antihistamines. An estimated 10% to 15% of pregnant people do use these drugs to treat allergic ...

In this randomized controlled trial, among patients with chronic spontaneous urticaria who continue to have symptoms while on ...

Spring allergies are making a return this month and certain common practices may not be helping as much as you think. These ...