The most highly addictive of the drugs is

Options

A. Heroin
B. LSD
C. Alcohol
D. Barbiturates

Answer

To determine the most highly addictive drug from the given options (heroin, LSD, alcohol, and barbiturate), we can follow these steps:

### Step 1: Understand the Options
- **Heroin**: An opioid that is known for its high potential for addiction.
- **LSD**: A hallucinogen that is not typically associated with physical dependence.
- **Alcohol**: A widely used substance that can lead to addiction and has significant effects on the body.
- **Barbiturates**: Depressants that can be addictive but are less commonly abused compared to alcohol.

### Step 2: Analyze the Addictiveness
- **Heroin**: Highly addictive, often leading to severe physical dependence.
- **LSD**: Generally not considered addictive in the same way as opioids or alcohol.
- **Alcohol**: Known for being widely abused and can lead to both physical and psychological dependence.
- **Barbiturates**: Can be addictive, but their use has declined with the rise of benzodiazepines.

### Step 3: Conclusion
After analyzing the addictiveness of each option, it is evident that **alcohol** is considered the most highly addictive substance among the options provided. It is widely abused and affects numerous body systems, leading to various negative effects on users.

### Final Answer
The most highly addictive of the drugs is **alcohol**.

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