Final answer:
In the case of a suspected drug overdose, Naloxone is the appropriate drug to anticipate as it acts as an opioid antagonist, rapidly reversing the effects of opioids.
Step-by-step explanation:
If Sam presents in the ER with a suspected drug overdose, the drug that would typically be administered is Naloxone. Naloxone is an opioid antagonist and is used to counter the effects of opioid overdose, such as respiratory depression. It is often used in emergency situations because it can quickly restore normal respiration to a person whose breathing has slowed or stopped as a result of overdosing on heroin or prescription opioid medications. Unlike Naltrexone, which is used for long-term maintenance in narcotic treatment programs, Naloxone acts immediately and is administered parenterally. Niravam, on the other hand, is an anti-anxiety medication and would not be suitable for treating an opioid overdose. Among the options provided, Naloxone is the correct answer and is widely known by its brand name Narcan.