Question

Karina is part of a clinical study to test the effects of two different drugs on lowering blood pressure. The study is carried out over several months. Each week she takes a different dose of either drug'x or 'y.Which drug has a higher efficacy? (Note: Karina's data will appear again in another question in this problem set. 5mg of Drug 'x lowers her blood pressure by 5mmHg 10mg of Drug'x lowers her blood pressure by 10mmHg 20mg of Drug'x lowers her blood pressure by 20mmHg 30mg of Drug'x lowers her blood pressure by 20mmHg 40mg of Drug'X lowers her blood pressure by 20mmHg 5mg of Drug 'y' lowers her blood pressure by 1mmHg 10mg of Drug 'y lowers her blood pressure by 5mmHg 20mg of Drug* lower her blood pressure by 15mmHg 35mg of Drug'x lowers her blood pressure by 20mmHg 40mg of Drug'x lowers her blood pressure by 20mmHg Select one O a. Drug 'y O b. Drug'x O c. Drug'x and drug'y' have equal efficacy O d. The answer cannot be determined from the information provided

Answer 1

Drug efficacy is the effect of drug on the body.

In the above case we can see that drug x have a greater effect on lowering BP with less dose as compared to drug y.

So we can say that drug x have higher efficacy than drug y

so the answer is : drug x