How did World War II change the work of pharmacists?

World War II served as a major turning point for the profession of pharmacy by accelerating the growth of the pharmaceutical industry and the discovery of new, effective drug substances.1

The most significant change in the pharmacist's daily work was the sharp decline in the need for extemporaneous compounding. Before this era, pharmacists relied heavily on manual skills to prepare individual dosage forms such as pills, plasters, potions, bougies, and cachets. As the industry began mass-producing standardized medications—most notably penicillin, which saw urgent commercial development during the war to meet critical medical needs—the requirement for these traditional manipulative skills diminished.123

While the nature of their technical labor shifted away from manual preparation, the pharmacist's role evolved to focus on new responsibilities. Pharmacists became essential in providing expert advice and information, ensuring the quality and efficacy of supplied medicinal products, and managing the storage and provision of correct, industry-manufactured dosage forms. This transition marked the move from the pharmacist as a primary compounder to a professional focused on clinical oversight and patient guidance.1