Bilert 40mg TabletsBilert 40 mg Tablets are used to manage allergic conditions such as allergic rhinitis, chronic hives, and other allergy related symptoms. The medicine works by blocking the action of histamine, a substance in the body that causes itching, sneezing, redness, and swelling. With regular use as advised by a doctor, it helps provide relief from allergy symptoms without causing significant drowsiness in most individuals.