Chemical Dependency Counselor CCDC Exam Pharmacology & Drug Classifications 1 — Questions and Answers
Question 1: Which drug class does alcohol belong to?
- CNS Depressants (Correct answer)
- Opioids
- Stimulants
- Hallucinogens
Correct answer: CNS Depressants
Alcohol is a central nervous system (CNS) depressant that slows brain activity, impairs coordination, and reduces inhibitions.
Question 2: Which receptor system is primarily targeted by opioids to produce analgesia and euphoria?
- Dopamine receptors
- Serotonin receptors
- Endogenous opioid receptors (mu, kappa, delta) (Correct answer)
- GABA receptors
Correct answer: Endogenous opioid receptors (mu, kappa, delta)
Opioids bind primarily to mu, kappa, and delta opioid receptors in the endogenous opioid system to produce analgesia and euphoria.
Question 3: Cocaine and amphetamines are classified as which type of substance?
- CNS Depressants
- CNS Stimulants (Correct answer)
- Opioids
- Cannabinoids
Correct answer: CNS Stimulants
Cocaine and amphetamines are CNS stimulants that increase dopamine, norepinephrine, and serotonin activity in the brain, raising alertness and energy.
Question 4: Which medication works by blocking opioid receptors to reduce cravings and prevent euphoria from opioid use?
- Methadone
- Buprenorphine
- Naltrexone (Correct answer)
- Disulfiram
Correct answer: Naltrexone
Naltrexone is a full opioid antagonist that blocks opioid receptors, preventing opioids from producing euphoria and reducing cravings for both opioids and alcohol.
Question 5: What is the primary mechanism by which benzodiazepines exert their sedative effects?
- Blocking dopamine receptors
- Enhancing GABA activity (Correct answer)
- Inhibiting serotonin reuptake
- Stimulating norepinephrine release
Correct answer: Enhancing GABA activity
Benzodiazepines enhance the effect of gamma-aminobutyric acid (GABA), the primary inhibitory neurotransmitter, producing sedation, anxiolysis, and muscle relaxation.
Question 6: Under DEA federal scheduling, marijuana (cannabis) is classified as which schedule?
- Schedule I (Correct answer)
- Schedule II
- Schedule III
- Schedule IV
Correct answer: Schedule I
Federally, marijuana is classified as a Schedule I controlled substance, indicating high abuse potential and no currently accepted medical use at the federal level.
Question 7: Disulfiram (Antabuse) treats alcohol use disorder by which mechanism?
- Reducing cravings through opioid receptor blockade
- Causing aversive physical reactions when alcohol is consumed (Correct answer)
- Replacing alcohol's effects on GABA receptors
- Increasing serotonin levels to improve mood
Correct answer: Causing aversive physical reactions when alcohol is consumed
Disulfiram inhibits aldehyde dehydrogenase, causing toxic acetaldehyde buildup when alcohol is consumed, producing nausea, flushing, and palpitations that deter drinking.
Chemical Dependency Counselor CCDC Exam Pharmacology & Drug Classifications 1
Which drug class does alcohol belong to?