Which bronchodilator is an inhaled anticholinergic medication?

Ipratropium is classified as an inhaled anticholinergic bronchodilator, distinguishing it from other types of bronchodilators. Anticholinergics work by blocking the action of acetylcholine, a neurotransmitter that contributes to bronchoconstriction and mucus secretion in the airways. By inhibiting this pathway, ipratropium leads to relaxation of the bronchial smooth muscles and dilation of the airways, which is beneficial in treating respiratory conditions such as chronic obstructive pulmonary disease (COPD) and asthma.

Inhaled anticholinergics like ipratropium are particularly effective for patients who may not respond well to other forms of bronchodilators, especially in instances where quick relief from bronchoconstriction is necessary. This specific mechanism of action is what sets ipratropium apart from the other options listed.

Albuterol is a short-acting beta-agonist (SABA) that works by stimulating beta-2 adrenergic receptors, leading to quick bronchodilation. Theophylline is a methylxanthine that works through phosphodiesterase inhibition and has a different pharmacologic profile. Salmeterol is a long-acting beta-agonist (LABA)