Maintenance bronchodilator treatments of chronic obstructive pulmonary disease (COPD) include oral inhaled long-acting muscarinic antagonists (LAMAs) and long-acting β2-agonists (LABA). These agents attenuate COPD symptoms and decrease the severity/number of exacerbations. They also enhance quality of life and heighten exercise capacity.
Tiotropium is a LAMA and anticholinergic, with similar degrees of affinity to M1 to M5 subtypes of muscarinic receptors. At the level of the airways, this agent inhibits M3-receptors at the smooth muscle, thus resulting in bronchodilation. In in vitro and in vivo studies, prevention of methacholine-induced bronchoconstriction effects lasted greater than 24 hours and were dose-dependent, with bronchodilation being mostly site specific. In clinical trials, handheld LAMA inhalers exhibited peak efficacy within 3 hours after the first dose.
What has your clinical experience been with LAMA inhalers? What is patient satisfaction regarding treatment?
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8788262/
https://www.accessdata.fda.gov/drugsatfda_docs/label/2009/021395s029lbl.pdf
https://pro.boehringer-ingelheim.com/us/products/spiriva/copd
Share your Opinion: LAMA inhalers for COPD
Overall I am satisfied with the performance of LAMA and my patients also express a good deal of satisfaction with this medicine