Anticholinergics
Definition: Anticholinergics are used for treating asthma and chronic obstructive pulmonary disease (COPD) because of their ability to relax smooth muscle, thereby widening the airways to the lungs. Anticholinergics are acetylcholine blockers (i.e. they block acetylcholine receptors). Acetylcholine is a chemical, produced by the brain, that causes muscles to contract – it is this movement that causes airway constriction.
Source: DrugDigest.org
Examples: Ipratropium is an anticholinergic
