Many secondary metabolites of plants have medicinal properties. It is their misuse that creates problems. Justify the statement with an example.

Explanation

**Step-by-Step Solution:**

1. **Understanding Secondary Metabolites**: Secondary metabolites are organic compounds that are not directly involved in the normal growth, development, or reproduction of plants. However, they play crucial roles in plant defense and have various medicinal properties.

2. **Examples of Medicinal Secondary Metabolites**: Some well-known secondary metabolites with medicinal properties include barbiturates, LSD (lysergic acid diethylamide), benzodiazepines, and morphine. These compounds are often used in medicine to treat various conditions, particularly mental health issues and pain management.

3. **Medicinal Uses**:
- **Barbiturates**: These are used to treat anxiety and sleep disorders. They are effective but can be addictive.
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