Final answer:
David's role entails supervising various aspects of the drug development process, including compounding and ensuring drugs are ready for safe delivery, following rigorous testing and approval guidelines set by the FDA.
Step-by-step explanation:
David is involved in the drug development process, a critical phase within the pharmaceutical industry. Pharmaceutical chemists are essential in the journey of a drug from its initial discovery or synthesis, through the research and development stages. This includes discovering new drugs, chemically altering substances to ensure safety and effectiveness, and executing large-scale production. Drug approval is also part of this comprehensive process, overseen by the Food and Drug Administration (FDA) in the United States, and demands thorough testing to confirm that a drug is non-toxic and efficacious for its intended use. David's role likely encompasses a variety of tasks related to formulation, compounding, testing, and quality control to ready the drugs for safe and effective delivery into the body.