Dr. Mark Su, Director of NYC Poison Control, joined On The Record to discuss how a drug used to treat cyanide poisoning saved a firefighter's life after collapsing in a burning home.

Photo: Getty Images

<p>Dr. Mark Su, Director of NYC Poison Control, joined On The Record to discuss how a drug used to treat cyanide poisoning saved a firefighter's life after collapsing in a burning home.</p>
<p>Photo: Getty Images</p>

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