What are two other age-related factors that have an impact on the effect of a drug?

Question

Quizplus · Accepted Answer

Disease can decrease the effectiveness of a drug, while other drugs can interact with the drug being taken and increase or decrease its effect. These factors can vary greatly with age, and can have a significant impact on how a drug affects an individual. The other options (B, C, and D) are also relevant in certain cases, but do not have as consistent or as significant an impact on drug effectiveness across age groups.

What Are Two Other Age-Related Factors That Have an Impact