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The drug is safe and efficacious.
  effective in producing an intended effect
 Mark word for later review on this computer
efficacious efficaciously efficaciousness
Strongly Associated with:   efficacy
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  • The drug is safe and efficacious.
  • He would weep for hours together, and I verily believe that to the very end this spoiled child of life thought his weak tears in some way efficacious.
    H.G. Wells  --  The War of the Worlds
  • I saw that we must apply some more efficacious remedy, and sent the boys for a chest of signal-rockets we had brought from the wreck.
    Johann Wyss  --  The Swiss Family Robinson
  • His naked fangs and writhing lips were uniformly efficacious, rarely failing to send a bellowing on-rushing dog back on its haunches.
    Jack London  --  White Fang

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  • over the years it turned out ... that that most efficacious medicine for whatever ailed him would be cash or credit, the larger the dosage the better.
    John Hersey  --  Hiroshima
  • These plants are most efficacious in the inflaming of the brain, and are therefore much used in Confusing and Befuddlement Draughts, where the wizard is desirous of producing hot-headedness and recklessness…
    J.K. Rowling  --  Harry Potter and the Order of the Phoenix
  • And one of the most efficacious remedies that a prince can have against conspiracies is not to be hated and despised by the people,
    Nicolo Machiavelli  --  The Prince
  • And considering the eagerness with which such information is sought by them, and the extent of your reputation, I do not know of a more efficacious advertisement than your biography would give.
    Benjamin Franklin  --  The Autobiography of Benjamin Franklin
  • "I do thank you for taking the time, Pomona," Slughorn was saying courteously, "most authorities agree that they are at their most efficacious if picked at twilight."
    J.K. Rowling  --  Harry Potter and the Half-Blood Prince
  • It is often an indication as to whether or not the procedure will be efficacious.
    Margaret Atwood  --  Alias Grace

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  • ...yet she had never found it less efficacious.
    E.M. Forster  --  A Passage to India
  • You’ll find it most efficacious.
    Margaret Craven  --  I Heard the Owl Call My Name
  • Indeed, all the treatments the doctors had tentatively employed, without definite results, now seemed almost uniformly efficacious.
    Albert Camus  --  The Plague
  • Both Beaton’s Guide and my own dim memories of folk medicine held that spider’s web was efficacious in dressing wounds.
    Diana Gabaldon  --  Outlander
  • You follow the world, my young friend, and I tremble lest grace prove not efficacious.
    Alexandre Dumas  --  The Three Musketeers
  • That was sure, efficacious, and free from danger.
    Victor Hugo  --  Les Miserables
  • He has but one fault, he is somewhat wilful; but really, on referring for the moment to what he said, do you truly believe that Mithridates used these precautions, and that these precautions were efficacious?
    Alexandre Dumas  --  The Count of Monte Cristo
  • There were men, too, of a sturdier texture of mind than his, and endowed with a far greater share of shrewd, hard iron, or granite understanding; which, duly mingled with a fair proportion of doctrinal ingredient, constitutes a highly respectable, efficacious, and unamiable variety of the clerical species.
    Nathaniel Hawthorne  --  The Scarlet Letter
  • The design was efficacious; for I remember that my mother seemed more at ease during the rest of the evening, and that Peggotty observed her less.
    Charles Dickens  --  David Copperfield
  • Only two and threepence a box—warranted efficacious by the Government stamp.
    Thomas Hardy  --  Jude the Obscure
  • Doubt not that it will be as efficacious against those of Rappaccini.
    Nathaniel Hawthorne  --  Rappaccini’s Daughter
  • Among all the methods by which love is brought into being, among all the agents which disseminate that blessed bane, there are few so efficacious as the great gust of agitation which, now and then, sweeps over the human spirit.
    Marcel Proust  --  Swann’s Way
  • Lights were already shining through its windows, and Archer, as the carriage stopped, caught a glimpse of his father-in-law, exactly as he had pictured him, pacing the drawing-room, watch in hand and wearing the pained expression that he had long since found to be much more efficacious than anger.
    Edith Wharton  --  The Age of Innocence
  • Undoubtedly it was as good a thing as you could do; though I question if some other oils would not have been equally efficacious.
    Thomas Hardy  --  The Return of the Native
  • If this was an efficacious process for the training of men, I wanted no part of manhood, I was perfectly content with being a boy.
    Pat Conroy  --  The Lords of Discipline
  • Volumnia, growing with the flight of time pinker as to the red in her face, and yellower as to the white, reads to Sir Leicester in the long evenings and is driven to various artifices to conceal her yawns, of which the chief and most efficacious is the insertion of the pearl necklace between her rosy lips.
    Charles Dickens  --  Bleak House
  • …and certainly by reason of that in them high mind’s ornament deserving of veneration constantly maintain when by general consent they affirm that other circumstances being equal by no exterior splendour is the prosperity of a nation more efficaciously asserted than by the measure of how far forward may have progressed the tribute of its solicitude for that proliferent continuance which of evils the original if it be absent when fortunately present constitutes the certain sign of…
    James Joyce  --  Ulysses
  • You see now what I meant by saying that I have to marvel at my social passes, that I was suddenly sure and efficacious in this business, could talk firmly and knowingly to rich young girls, to country-club sports and university students, presenting things with one hand and carrying a cigarette in a long holder in the other.
    Saul Bellow  --  The Adventures of Augie March
  • To live in the world as though it were not the world, to respect the law and yet to stand above it, to have possessions as though "one possessed nothing," to renounce as though it were no renunciation, all these favorite and often formulated propositions of an exalted worldly wisdom, it is in the power of humor alone to make efficacious.
    Hermann Hesse  --  Steppenwolf
  • No sooner, therefore, had this symptom appeared, than he had immediate recourse to the said remedy, which though, as it is usual in all very efficacious medicines, it at first seemed to heighten and inflame the disease, soon produced a total calm, and restored the patient to perfect ease and tranquillity.
    Henry Fielding  --  Tom Jones
  • Nicholas, after some opposition, at length consented, and, while some pretty severe bruises on his arms and shoulders were being rubbed with oil and vinegar, and various other efficacious remedies which Newman borrowed from the different lodgers, related in what manner they had been received.
    Charles Dickens  --  Nicholas Nickleby
  • On the other hand the Huron resumed his seat by the side of his prisoner, the one continuing to ask questions with all the wily ingenuity of a practised Indian counsellor, and the other baffling him by the very means that are known to be the most efficacious in defeating the finesse of the more pretending diplomacy of civilization, or by confining his answers to the truth, and the truth only.
    James Fenimore Cooper  --  The Deerslayer
  • "Powder and artillery are the most efficacious, sure and infallible conciliatory measures we can adopt," Adams wrote privately.
    David McCullough  --  John Adams
  • This is the essential, and, after all, only efficacious security for the rights and privileges of the people, which is attainable in civil society.
    Alexander Hamilton, James Madison, & John Jay  --  The Federalist Papers
  • It would be neither fitting nor efficacious for this Government to undertake to draw up unilaterally a program designed to place Europe on its feet economically.
    George C. Marshall  --  The Marshall Plan
  • But it will always be easy for the central government, organized as it is in America, to introduce new and more efficacious modes of action, proportioned to its wants.
    Alexis de Toqueville  --  Democracy In America, Volume 1
  • He had set forth the theory that, at least as far as his institution was concerned, the summer cure was to be recommended no less than the winter, that it was especially efficacious, indeed absolutely indispensable.
    Thomas Mann  --  The Magic Mountain
  • Independently of the causes I have pointed out in what goes before, others may be discerned less apparent, but no less efficacious, which engender amongst almost every democratic people a taste, and frequently a passion, for general ideas.
    Alexis de Toqueville  --  Democracy In America, Volume 2
  • Sensible of this momentous truth, you have improved upon your first essay, by the adoption of a constitution of government better calculated than your former for an intimate union, and for the efficacious management of your common concerns.
    George Washington  --  Washington’s Farewell Address
  • In the first place, he set his face firmly against all the discoveries of the last thirty years: he had no patience with the drugs which became modish, were thought to work marvellous cures, and in a few years were discarded; he had stock mixtures which he had brought from St. Luke’s where he had been a student, and had used all his life; he found them just as efficacious as anything that had come into fashion since.
    W. Somerset Maugham  --  Of Human Bondage
  • It has since been discovered that when justice is more certain and more mild, it is at the same time more efficacious.
    Alexis de Toqueville  --  Democracy In America, Volume 1
  • I am persuaded, on the contrary, that in this case the collective strength of the citizens will always conduce more efficaciously to the public welfare than the authority of the Government.
    Alexis de Toqueville  --  Democracy In America, Volume 1
  • I explained that though the raw mushroom caps were indeed poisonous, you could prepare a powdered preparation from the dried fungi that was very efficacious in stopping bleeding when applied topically.
    Diana Gabaldon  --  Outlander
  • But these governments do not attend to the fact that political associations tend amazingly to multiply and facilitate those of a civil character, and that in avoiding a dangerous evil they deprive themselves of an efficacious remedy.
    Alexis de Toqueville  --  Democracy In America, Volume 2
  • Efficacious social reforms would have deprived the latter of the most important means of justification, and the former of their sanctified state.
    Thomas Mann  --  The Magic Mountain
  • Yes, efficacious grace has touched you, as that gentleman said just now.
    Alexandre Dumas  --  The Three Musketeers
  • Even Tarrou, after recording in his notebook that in such cases the Chinese fall to playing tambourines before the Genius of Plague, observed that there was no means of telling whether, in practice, tambourines proved more efficacious than prophylactic measures.
    Albert Camus  --  The Plague
  • It is at the same time less formidable and less efficacious; indeed, it has not been considered by the legislators of the United States as a remedy for the more violent evils of society, but as an ordinary means of conducting the government.
    Alexis de Toqueville  --  Democracy In America, Volume 1
  • If standing armies are dangerous to liberty, an efficacious power over the militia, in the body to whose care the protection of the State is committed, ought, as far as possible, to take away the inducement and the pretext to such unfriendly institutions.
    Alexander Hamilton, James Madison, & John Jay  --  The Federalist Papers
  • Most who suffer from the more severe nervous and cerebral disorders cannot be cured, but merely controlled; for which purposes, physical restraint and correction, a restricted diet, and cupping and bleeding to reduce excessive animal spirits, have in the past proven efficacious enough.
    Margaret Atwood  --  Alias Grace
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Associated words [difficulty]:   efficacious [7] , efficacy [5] , affectation [4] , efficacy [5]
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Most commonly used in these subjects:   Human Behavior, Medicine, Religion & Spirtuality
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