The most useful classification of drugs for medicinal chemists is_______.

Options

A. on the basis of chemical structure.
B. on the basis of drug action.
C. on the basis of molecular targets.
D. on the basis of pharmacological effect.

Answer

**Step-by-Step Solution:**

1. **Understanding Drug Classification**: The question asks about the most useful classification of drugs for medicinal chemists. It is essential to understand that drugs can be classified in various ways, including their structure, mechanism of action, and target.

2. **Identifying the Most Useful Classification**: Among the various classification methods, the most useful for medicinal chemists is based on the drug's molecular target. This classification focuses on the specific biological target (like a receptor or enzyme) that the drug interacts with to exert its therapeutic effect.

3. **Reasoning Behind Target-Based Classification**: The reason this classification is considered the most beneficial is that many drugs may share common structural features but can have different effects based on their interaction with specific targets. By classifying drugs according to their molecular targets, chemists can better understand their mechanisms of action and predict their effects.

4. **Conclusion**: Therefore, the answer to the question is that the most useful classification of drugs for medicinal chemists is based on their molecular targets.

**Final Answer**: The most useful classification of drugs for medicinal chemists is based on their molecular targets.

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