On this episode, I discuss tiotropium pharmacology. In addition, I cover adverse effects, administration pearls, and drug interactions.

Tiotropium blocks acetylcholine from binding the M3 receptor in the lungs. This leads to a relaxation of the bronchial smooth muscle.

Because tiotropium has anticholinergic activity, there is a potential for anticholinergic adverse effects like constipation, urinary retention, and dry mouth.

The tiotropium Handihaler can be confusing to patients. I discuss medication misadventures in this podcast episode.