Final answer:
A pharmacist must dispense drugs on the Negative Formulary as branded products without substitution. They utilize their knowledge of chemistry and biology to ensure proper medication use and patient safety.
Step-by-step explanation:
When a pharmacist encounters a prescription for a drug that is on the Negative Formulary, and no brand name is specified, they must dispense the drug as a branded product and cannot substitute with a generic equivalent. The Negative Formulary List includes drugs for which generic substitutions are not allowed because of differences in drug absorption or the possibilities of adverse effects with alternative formulations. Pharmacists play a critical role in ensuring medication safety and efficacy. Their extensive knowledge in chemistry and biology allows them to understand complex drug interactions and provides them the ability to counsel patients on the proper use of their medications. CAREER FOCUS: PHARMACIST section highlights the importance of pharmacists' expertise in drug selection, dosage, interactions, and side effects.