Antiadrenergic as an adjective is preventing or counteracting the effects of adrenaline while Catecholamine as a noun is any of a class of aromatic amines derived from pyrocatechol that are hormones produced by the adrenal gland.
Part of speech: adjective
Definition: preventing or counteracting the effects of adrenaline
Part of speech: noun
Definition: Any of a class of aromatic amines derived from pyrocatechol that are hormones produced by the adrenal gland.
We hope you now know whether to use Antiadrenergic or Catecholamine in your sentence.