John has been using heroin for 2 weeks.He is craving it immensely and feels horrible when he doesn't have any heroin.These symptoms are MOST indicative of which of the following?

Question

Quizplus · Accepted Answer

John's intense cravings and negative physical symptoms when he doesn't have heroin indicate a physical dependence on the drug. Two weeks of use can be enough time for dependence to develop, especially with a highly addictive substance like heroin. However, it is not enough time to necessarily indicate an overdose, and drug abuse alone may not always involve physical dependence.

John Has Been Using Heroin for 2 Weeks