National Certified Addiction Counselor, Level 2 (NCAC II) Practice Exam Exam

Which central nervous system stimulant is known for being an addictive substance?

1. Caffeine

2. Cocaine

3. Nicotine

4. Both B and C

The correct answer is: Both B and C

The choice that encompasses both cocaine and nicotine accurately reflects the nature of their addictive properties. Cocaine is a powerful central nervous system stimulant that leads to an intense euphoria, increased energy, and heightened alertness, making it highly addictive. Its mechanism of action involves blocking the reuptake of dopamine, which is a neurotransmitter associated with pleasure and reward. Nicotine, on the other hand, is the primary addictive substance found in tobacco. It stimulates the release of neurotransmitters like dopamine and norepinephrine, which not only enhance mood and feelings of pleasure but also create a strong dependence in users. The addictive potential of nicotine is well-documented, as it leads to withdrawal symptoms that can make quitting difficult. While caffeine is indeed a central nervous system stimulant, it is generally considered to have a lower potential for addiction compared to cocaine and nicotine. Caffeine may lead to dependence in some individuals, but its withdrawal symptoms are milder and less disruptive to daily functioning than those associated with cocaine or nicotine. Thus, recognizing both cocaine and nicotine as addictive substances distinctly supports the choice of encompassing both to demonstrate a comprehensive understanding of central nervous system stimulants and their potential for addiction.