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.
Cincinnati Red's Aroldis Chapman threw a pitch at a blistering 105 mph during the 2010-2011 season when they went to the playoffs and fell short in the first round to the Philâ¦lies. Still Aroldis is the fastest arm in the leagues history even though they came short in the Post-Season.