Case 11, Answer 2b Jun 01, 2012 By dvm360.com staff Try again. Bromethalin is a rodenticide that causes weakness, ataxia, and twitching. << Back Hot topics on dvm360Pet Owner 2.0: A dvm360 Leadership Challenge Veterinary issues in 2016: Will this be the year of telemedicine? Top 8 nastiest things to clean at a veterinary practice The 12 days of veterinary client handouts Need a urine sample? Urine luck!