Question

The interaction of two or more drugs at the same receptor site in which one blocks the action of the other is

a. synergism.
b. antagonism.
c. cross-tolerance.
d. intolerance.

Answer 1

synergism is the interaction of two or more drugs at the same receptor site in which one blocks the action

Answer 2

The correct option is b

Step-by-step explanation:

Antagonism is caused when a chemical (in this case drug) causes the opposite effect of another chemical (in this case drug) or blocks the effect of another chemical/drug.

A commonly used example of antagonism is the opposing effects of insulin and glucagon in the body; Insulin lowers blood sugar level but glucagon raises same in the body.