What is a Type F ADR?

What is a Type F ADR?

• A. Unexpected Failure of therapy
• B. Common
• C. Dose related; often caused by drug interactions
• D. Opiate withdrawal

Answer: (A)

Type F ADRs describe therapy failure—the drug does not achieve the expected therapeutic effect in a patient who should respond. This category is about lack of efficacy rather than predictable dose-related effects or withdrawal. So a description of unexpected therapy failure fits Type F best, because it captures the idea that the treatment isn’t working as intended. Other options describe something else: a common issue isn’t a classification of ADRs; dose-related effects are Type A; withdrawal symptoms are Type E.

Type F ADRs describe therapy failure—the drug does not achieve the expected therapeutic effect in a patient who should respond. This category is about lack of efficacy rather than predictable dose-related effects or withdrawal. So a description of unexpected therapy failure fits Type F best, because it captures the idea that the treatment isn’t working as intended. Other options describe something else: a common issue isn’t a classification of ADRs; dose-related effects are Type A; withdrawal symptoms are Type E.