Which of the following is a drug-related clinical outcome?

• A. Severity of symptoms
• B. Hospitalization rate
• C. Beneficial effects or adverse drug events
• D. Cost of care

Answer: (C)

Drug-related clinical outcomes are the health changes caused directly by a medication, including both the beneficial effects and any adverse drug events. This option is the best because it explicitly encompasses the positive therapeutic effects a drug can produce as well as the negative reactions it may cause. Other choices describe outcomes not specific to drug therapy: severity of symptoms can reflect disease status rather than drug effects, hospitalization rate is a health service utilization measure influenced by many factors, and cost of care is an economic outcome rather than a clinical one.