Synonyms:
efficacious
Meaning: marked by qualities giving the power to produce an intended effect; "written propaganda is less efficacious than the habits and prejudices...of the readers"-Aldous Huxley; "the medicine is efficacious in stopping a cough"
Usage examples
Variety in human dreams, like personality among savages, may indeed be inwardly very great, but it is not efficacious.
Such negotiations, made with cunning supported by bribery, proved as usual more prompt and efficacious than any others.
The following is what he prescribes as efficacious for some of the most dire complaints with which cats are apt to be afflicted.
He was not a man who would have been left out in the cold in silence, and perhaps the feeling that such was the case had been as efficacious on his behalf as his well-attested popularity.
It may not be able to perform a surgical operation like that which is required for the removal of a leg, and I don't believe even Wagner ever composed a measure that could be counted on successfully to eliminate one's vermiform appendix from its chief sphere of usefulness; but for other things, like measles, mumps, the snuffles, or indigestion, it is said to be wonderfully efficacious.