Deadly sedative 'tranq' creeping into SF's drug supply, health officials warn
Deadly sedative 'tranq' creeping into SF's drug supply, health officials warn

Deadly sedative 'tranq' creeping into SF's drug supply, health officials warn

A deadly sedative known by the street name "tranq" has been detected in at least four fatal overdose victims in San Francisco ? raising concerns that the city's already catastrophic drug crisis could take a turn for the worse, city health officials announced Thursday.

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