1. Freedom of information (FOI) summary NADA 141-228 BUSCOPAN N-butylscopolammonium bromide 2004 http://www.fda.gov/downloads/animalveterinary/products/approvedanimaldrugproducts/foiadrugsummaries/ucm118039.pdf
2. A comparison of N-butylscopolammonium bromide and butorphanol tartrate for analgesia using a balloon model of abdominal pain in ponies;Boatwright;Can. J. Vet. Res.,1996
3. Analgesic and spasmolytic effects of dipyrone, hyoscine-N-butylbromide and a combination of the two in ponies;Roelvink;Vet. Rec.,1991
4. Effect of acepromazine, butorphanol, or N-butylscopolammonium bromide on visceral and somatic nociception and duodenal motility in conscious horses;Sanchez;Am. J. Vet. Res.,2008
5. A comparison of N-butylscopolammonium and lidocaine for control of rectal pressure in horses;Luo;Vet. Ther.,2006