可以幫答下面3題答案嗎?上面是題目拜託幫幫我 - 藥品

An 18-year-old man is brought into the emergency department after being found on the street unresponsive
一位18歲的男士被送到急診室在他被發現躺在路上不省人事之後
he is lethargic and doesn't answer question
他目前不省人事他不能回答問題
he has been given 1 ampule of Dextrose intravenously without result
他目前已被施打葡萄糖但無明顯反映
On examination his heart rate is 60 beats per minute and respiratory rate is 8 per minute and shallow
透過檢常他現在的心跳是一分鐘六十下，他呼吸一分鐘8次並且呼吸很淺
His pupils are pinpoint and not reactive
他的瞳孔非常小並且無反應
There are multiple interventions track marks on his arms
他的手臂上有許多針頭的痕跡
The emergency physician concludes that the patient has had a drug overdose
醫護人員表示那位病人服藥過量(毒品)
問題:
What is the most likely diagnosis?
最可能的診斷是什麼？
What is the most appropriate medication for this condition?
這種狀況 最適當的藥物是什麼？
In addition to its therapeutic actions，what other effects might this medication produce?
除了治療功用之外 此藥物可能產生那些其他影響作用？