‘Rhino tranq’ detected in St Louis drug supply, raising alarms over overdose risk

Apr 8, 2026 - 01:00
‘Rhino tranq’ detected in St Louis drug supply, raising alarms over overdose risk
Health officials are warning about a dangerous new drug emerging in the U.S. supply—medetomidine, also known on the street as “rhino tranq”—that may significantly increase the risk of overdose, especially when mixed with other substances.