Neuroscience Fundamentals Practice Test 2026 - Free Neuroscience Practice Questions and Study Guide

The opioid known for being highly addictive and significantly more potent than morphine is fentanyl. Fentanyl is estimated to be about 50 to 100 times more potent than morphine, making it a powerful substance used primarily in medical settings for pain management. However, its potency also makes it highly addictive and increases the risk of overdose, which is a significant concern in both medical and non-medical contexts.

Understanding the characteristics and impact of fentanyl is crucial in discussions related to opioid use and addiction. While heroin is certainly addictive, it does not match the potency of fentanyl. Likewise, oxycodone is another widely used opioid but is less potent than fentanyl. Cocaine, while a powerful stimulant, does not belong to the opioid class. Therefore, recognizing fentanyl's unique properties and risks is vital for comprehending the landscape of opioid addiction and management.