Question:
Consumption of which drug increases the concentration of dopamine in the brain?
Consumption of which drug increases the concentration of dopamine in the brain?
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Cocaine = dopamine buildup → euphoria → addiction risk.
Updated On: May 4, 2026
- Heroin
- Hashish
- Lysergic acid
- Cocaine
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The Correct Option is D
Solution and Explanation
Concept:
Certain addictive drugs affect neurotransmitters in the brain, especially dopamine, which is associated with pleasure and reward.
Step 1: Understand dopamine action. Dopamine is a neurotransmitter involved in:
• Reward and pleasure pathways
• Addiction and reinforcement
Step 2: Effect of cocaine. Cocaine:
• Blocks reuptake of dopamine at synapses
• Leads to accumulation of dopamine
• Causes intense stimulation and euphoria
Step 3: Analyze options.
• (A) Heroin → Opioid, acts on endorphin receptors $\times$
• (B) Hashish → Cannabinoid, affects perception $\times$
• (C) Lysergic acid (LSD) → Hallucinogen $\times$
• (D) Cocaine → Increases dopamine levels \checkmark
Step 4: Conclusion. \[ \text{Cocaine increases dopamine concentration in the brain} \]
Certain addictive drugs affect neurotransmitters in the brain, especially dopamine, which is associated with pleasure and reward.
Step 1: Understand dopamine action. Dopamine is a neurotransmitter involved in:
• Reward and pleasure pathways
• Addiction and reinforcement
Step 2: Effect of cocaine. Cocaine:
• Blocks reuptake of dopamine at synapses
• Leads to accumulation of dopamine
• Causes intense stimulation and euphoria
Step 3: Analyze options.
• (A) Heroin → Opioid, acts on endorphin receptors $\times$
• (B) Hashish → Cannabinoid, affects perception $\times$
• (C) Lysergic acid (LSD) → Hallucinogen $\times$
• (D) Cocaine → Increases dopamine levels \checkmark
Step 4: Conclusion. \[ \text{Cocaine increases dopamine concentration in the brain} \]
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