Which description matches physical dependence?

Which description matches physical dependence?

• A. A physical state in which the body adapts to a drug and experiences withdrawal when abruptly stopped, or the dose is rapidly lowered
• B. A compulsion to use a drug, often for its mood altering effects
• C. A mild adverse effect
• D. A measure of drug legality

Answer: (A)

Physical dependence is when the body adapts to a drug and withdrawal symptoms occur if the drug is stopped abruptly or the dose is lowered rapidly. The description given matches this idea exactly, describing the body's adaptation and withdrawal upon change. This is about physiological changes, not just wanting the drug or liking its effects. The other options point to psychological dependence (a compulsion to use), a general mild adverse effect, or drug legality, none of which describe the body's physiological adaptation to drug use.

Physical dependence is when the body adapts to a drug and withdrawal symptoms occur if the drug is stopped abruptly or the dose is lowered rapidly. The description given matches this idea exactly, describing the body's adaptation and withdrawal upon change. This is about physiological changes, not just wanting the drug or liking its effects. The other options point to psychological dependence (a compulsion to use), a general mild adverse effect, or drug legality, none of which describe the body's physiological adaptation to drug use.