Drugs CH 3

situation in which the response to one drug is decreased in the presence of another drug

when two drugs together produce a greater effect than either drug produces (involves both potentiation and addiction)

is a drug that has a definite affinity for a receptor but has little or no efficacy after being bound to it.

if the agonist is capable of dissociating from the receptor

is incapable of being dissociated or displaced from the receptor.