(1S,2R,4S,5S,7R)-7-[2-Hydroxy(di-2-thienyl)acetoxy]-9,9-dimethyl-3-oxa-9-azoniatricyclo[3.3.1.0^2,4]nonane bromide

Tiotropium bromide (INN) is a long-acting, 24-hour, anticholinergic bronchodilator used in the management of chronic obstructive pulmonary disease (COPD). Tiotropium bromide capsules for inhalation are co-promoted by Boehringer-Ingelheim and Pfizer under the trade name Spiriva. It is also manufactured and marketed by Cipla under trade name Tiova.
Tiotroprium was discovered in 1991 and came to market in 2004.