Final answer:
A proprietary drug can be made from a non-proprietary drug through a process of development, testing, and approval. After the initial discovery or synthesis, the drug is chemically altered, tested for toxicity, and designed for large-scale production. It then undergoes FDA approval through extensive testing to ensure its safety and effectiveness.
Step-by-step explanation:
In order for a proprietary drug to be made from a non-proprietary drug, it must go through a process of development, testing, and approval. After the initial discovery or synthesis of a drug, the chemist develops the drug by chemically altering it, testing it for toxicity, and designing methods for large-scale production. Then, the drug goes through the process of getting approved for human use by the Food and Drug Administration (FDA). This involves extensive testing using human subjects to ensure the drug is safe and effective.