Question

Which histamine receptors are primarily responsible for producing allergic manifestations?

Options

• H3 receptors

• Both H1 and H2 receptors equally

• H1 receptors

• H2 receptors

Answer 1

H1 receptors are responsible for producing allergic manifestations. These receptors are mainly present in the skin, lung tissue, and intestinal mucosa, which are common sites of allergic symptoms such as itching, wheezing, and gastrointestinal distress. Stimulation of H1 receptors by released histamine leads to the characteristic signs and symptoms of allergies.