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.
But thereâs a problem: Aroldis Chapman throws so darn hard that heâs the only name on the list of the 50 fastest pitches thrown in baseball this year. According to MLB.com, Chapman has thrown the 101 hardest fastballs in 2015, an issue that necessitates a âChapman Filterâ for the page.