Authorities intercepted a woman using this drug kit in preparation for shooting up a mix of heroin and fentanyl inside a Walmart bathroom last month in Manchester, N.H. Fentanyl offers a particularly potent high but also can shut down breathing in under a minute.

Authorities intercepted a woman using this drug kit in preparation for shooting up a mix of heroin and fentanyl inside a Walmart bathroom last month in Manchester, N.H. Fentanyl offers a particularly potent high but also can shut down breathing in under a minute.