
It's important to know what to look for if you suspect contact with fentanyl. Symptoms of opioid overdose include very small "pinpoint" pupils, slow heartbeat or low blood pressure, and being unresponsive.
Read More →Fentanyl is 30 to 50 times more potent than heroin—so deadly that just a few inhaled grains can cause an overdose. (A few human police officers have been hospitalized after accidentally inhaling puffs of the substance.) That can be a problem when sniffing is a police dog’s primary mode of detective work.
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