The two most important symptoms of physical dependence on a drug are
A) tolerance and failing to attend important occasions due to substance use.
B) withdrawal and substance abuse.
C) tolerance and withdrawal.
D) intolerance of most anything and withdrawal.
E) the development of narcoleptic spells and an increase in night terror episodes.

Question

Quizplus · Accepted Answer

Tolerance refers to the body's adaptation to the drug, which requires higher doses to achieve the same effect. Withdrawal refers to the unpleasant physical and psychological symptoms that occur when a substance is discontinued or reduced after prolonged use. These two symptoms are indicators of physical dependence on a drug.

The Two Most Important Symptoms of Physical Dependence on a Drug