Final answer:
Naloxone works to reverse the effects of opioid overdose, including overdoses from heroin and fentanyl.
Step-by-step explanation:
Naloxone works to reverse the effects of opioid overdose, including overdoses from heroin and fentanyl. It is an opioid receptor antagonist that can quickly restore normal breathing in someone experiencing an overdose. Naloxone is commonly used by emergency medical personnel and first responders to prevent overdose deaths.