asthma - Anti-allergic drugs

Question 1

Give example of histamine receptor antagonists?

Answer 1

• Fexofenadine

- Cetrizine (non-sedating)

Question 2

When are histamine receptor antagonists effectively used?

Answer 2

Modestly effective in mild atopic asthma especially in forms induced by acute histamine release in patients such as in severe hayfever

(Histamine released from mast cells in some forms of allergic / exercise induced asthma)