Sleeping pills are made from:

Options

A. LSD
B. Cocaine
C. Barbiturates
D. Amphetamines

Answer

### Step-by-Step Solution:

1. **Understanding the Question**: The question is asking about the chemical composition of sleeping pills. We need to identify which of the given options is commonly used in the formulation of sleeping pills.

2. **Analyzing the Options**:
- **LSD (Lysergic acid diethylamide)**: This is a hallucinogenic drug derived from a fungus. It is known for causing hallucinations and is not used in sleeping pills.
- **Cocaine**: This is derived from the coca plant and is primarily used as a local anesthetic. It affects dopamine transport and histamine release but is not used in sleeping pills.
- **Amphetamines**: These are stimulants that promote alertness and are used in anti-sleep drugs. They are not used in sleeping pills as they counteract sleep.
- **Barbiturates**: These are derivatives of barbituric acid and act as depressants on the central nervous system (CNS). They are commonly used in the formulation of sleeping pills.

3. **Selecting the Correct Option**: Based on the analysis, the correct answer is **Barbiturates**, as they are specifically used in sleeping pills due to their depressant effects on the CNS.

### Final Answer:
Sleeping pills are made from **Barbiturates**.