dose-response

adjective

: of, relating to, or graphing the pattern of physiological response to varied dosage (as of a drug or radiation) in which there is typically little or no effect at very low dosages and a toxic or unchanging effect at high dosages with the maximum increase in effect somewhere between the extremes

nicotine was rated as highly euphoric, with dose-response curves similar to those of cocaine, amphetamines and morphine

—Sandra Blakeslee