DXM is also used recreationally. When exceeding label-specified maximum dosages, dextromethorphan acts as a dissociative anesthetic. Its mechanism of action is via multiple effects, including actions as a nonselective serotonin reuptake inhibitor and a sigma-1 receptor agonist.
Aroldis Chapman has thrown the fastest pitch ever recorded, but he has challengers for baseball's hottest heater in 2017. Ever since Aroldis Chapman delivered a 105 mph fastball to Tony Gwynn Jr., Chapman's name has been synonymous with velocity.
What is the speed of the fastest baseball pitch ever thrown? A: The fastest baseball pitch ever recorded was thrown by Cincinnati Reds left hander Aroldis Chapman on Sept. 24, 2010, and was 105.1 mph. Chapmanâs heater topped the mark of 104.8 mph set by Detroit Tigers reliever Joel Zumaya in 2006.