... to the six-hourly administration of ipratropium.[2] In the USA and Australia, ipratropium 1 ... in parts per million downfield shift from tetramethylsilane and are reported as chemical shift, relative ... Chemistry (1R,3r,5S,2 RS)-3 -Hydroxy-2 -phenylpropionic Acid 8-Azabicyclo[3.2.1]oct-3 ...