Kahaloa has been suspended for 50 games due to a second positive test for a drug of abuse, the Cincinnati Enquirer's Zach Buchanan reports.
Kahaloa was a fifth-round pick by the Reds in 2015. He pitched 44.2 innings at Rookie-level Billings over 10 starts last season, posting a 2.82 ERA and 1.15 WHIP with a 42:13 K:BB.