Final answer:
The drug used to reverse acute opioid toxicity/overdose is Naloxone. Naloxone is an opioid antagonist that quickly counteracts the effects of opioids and restores normal breathing.
Step-by-step explanation:
The drug used to reverse acute opioid toxicity/overdose is Naloxone. Naloxone is an opioid antagonist that works by blocking the effects of opioids on the brain and restoring normal breathing.
When administered to individuals who have overdosed on opioids, Naloxone can quickly counteract the effects of the opioids and reverse the toxic effects. It can be administered as an injection or as a nasal spray.
Naloxone is often carried by first responders and is also available at many pharmacies without a prescription. It is a life-saving medication that can be used to rapidly reverse the effects of an opioid overdose.