Answer :
Final answer:
Heroin, an illegal opioid drug, produces euphoria by binding to opioid receptors in the brain.
Explanation:
Heroin is an illegal drug, classified as an opioid that produces feelings of euphoria by binding to opioid receptors in the brain. This substance is highly addictive and can lead to severe consequences, including overdose and death.
Learn more about Heroin as an illegal opioid drug here:
https://brainly.com/question/36424058
Answer:
B. An illegal drug
Explanation:
Heroin is an illegal drug, classified as an opioid that produces feelings of euphoria by binding to opioid receptors in the brain. This substance is highly addictive and can lead to severe consequences, including overdose and death.