1. Bronchodilators
2. Corticosteroids (steroids)
3. ANTI-HISTAMINES
1
, 1. BRONCHODILATORS
•Also called relievers
•Mainly used in Asthma & Chronic Obstructive
Pulmonary Disease (COPD).
a). Sympathomimetic agents.
• The most commonly drugs are beta-2 agonists.
• Other drugs such as epinephrine & ephedrine
have largely been replaced by beta -2 agonists.
Effects
•Relax airway smooth muscle causing
bronchodilation.
•Inhibit release of some bronchoconstricting
substances from mast cells
10/18/2025 Compiled by Pius M. Mutunga 2