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.
Aroldis Chapman - 104 mph pitch in Sept. 2010. At the Reds vs. Brewers game on September 1, 2010, Aroldis Chapman threw a fastball clocked at 104mph, but it is believed he can go to 105. So i would say that the fastest pitcher of our time has got to be Aroldis Chapman.