Drug tolerance is a shift in the dose-response curve
A) upward.
B) to the right.
C) to the left.
D) both A and B
E) both A and C

Question

Quizplus · Accepted Answer

Drug tolerance is a shift in the dose-response curve to the right. This means that a higher dose of the drug is required to produce the same effect as before. Therefore, the curve shifts to the right on the x-axis, indicating the increased dose needed to achieve the same response. Option A is incorrect as an upward shift would mean that the same dose produces a greater response, which is not the case in drug tolerance. Option C is also incorrect as a leftward shift signifies increased sensitivity to the drug, which contradicts the concept of tolerance. Option D and E are partially correct but not the best answer as they include incorrect options along with the right ones.

Drug Tolerance Is a Shift in the Dose-Response Curve