Which term describes the dose that achieves the chosen response in a specified percentage of individuals?

Which term describes the dose that achieves the chosen response in a specified percentage of individuals?

• A. Lethal Dose
• B. Effective Dose
• C. Carcinogen
• D. Additive Effects

Answer: (B)

Dosing concepts in pharmacology and toxicology use the idea of Effective Dose to describe the amount needed to produce a defined effect in a certain portion of the population. The term refers specifically to the dose that achieves the chosen response in the specified percentage of individuals; for example, ED50 is the dose that produces the effect in 50% of people. Other percentages (like ED20 or ED90) are used for different risk or efficacy targets. This is different from a lethal dose, which measures the amount that causes death in a percentage of individuals, and from terms describing the agent (carcinogen) or how substances interact (additive effects).

Dosing concepts in pharmacology and toxicology use the idea of Effective Dose to describe the amount needed to produce a defined effect in a certain portion of the population. The term refers specifically to the dose that achieves the chosen response in the specified percentage of individuals; for example, ED50 is the dose that produces the effect in 50% of people. Other percentages (like ED20 or ED90) are used for different risk or efficacy targets. This is different from a lethal dose, which measures the amount that causes death in a percentage of individuals, and from terms describing the agent (carcinogen) or how substances interact (additive effects).