Final answer:
Pharmacists prioritize patient safety and well-being, advising on medication use based on their knowledge of chemistry and biology.
Step-by-step explanation:
A pharmacist's first consideration must always be the safety and well-being of the patient. This means ensuring that patients understand their medications and use them correctly to maintain or improve their health. Pharmacists, with their extensive knowledge in chemistry and biology, play a crucial role in the healthcare system. They work in various settings, including drugstores and hospitals, to advise both physicians and patients on medication selection, dosage, interactions, and side effects to avoid potential risks and achieve the best therapeutic outcomes.