Asthma: U.S. FDA approves new indication for SPIRIVAÂ® RespimatÂ®. Ingelheim, Germany, 16. September, 2015 â Boehringer Ingelheim today announced that the U.S. Food and Drug Administration (FDA) approved SPIRIVAÂ® RespimatÂ® (tiotropium bromide) Inhalation Spray for use in the treatment of asthma.