Definition of prophylaxis in English:



mass noun
  • Treatment given or action taken to prevent disease.

    with modifier ‘all patients received preoperative antibiotic prophylaxis’
    ‘stroke prophylaxis’
    • ‘In those who are severely immunosuppressed the treatment and prophylaxis of opportunistic infections remains important.’
    • ‘Containment may not be possible without vaccination, prophylaxis or effective treatment.’
    • ‘Most urologic procedures do not require preoperative antibiotic prophylaxis.’
    • ‘Antibiotic prophylaxis is recommended for bacteremic procedures to prevent brain abscess.’
    • ‘It was approved in 1993 for treatment and prophylaxis of infection in adults.’
    • ‘They need to be backed up by drugs for prophylaxis and treatment of opportunistic infections.’
    • ‘In consequence, the author counsels vigorous treatment for psychosis and prophylaxis for those at risk of it.’
    • ‘Medical prophylaxis is effective in up to 80% of patients with recurrent calcium stones.’
    • ‘The fourth reading of circumcision saw it as a form of medical prophylaxis.’
    • ‘Currently, there is no vaccine for the disease, and postexposure prophylaxis is not effective.’
    • ‘These surgical patients would receive our routine antibiotic prophylaxis as well as the study drug.’
    • ‘The patient should then see a dentist immediately for splinting and antibiotic prophylaxis.’
    • ‘How can nurses plan for antibiotic prophylaxis, a role that is so important to patient safety?’
    • ‘For many procedures, antibiotic prophylaxis is given during the induction of anesthesia.’
    • ‘Should aspirin be a short term intervention after a vascular event or a long term agent for cardiovascular prophylaxis?’
    • ‘We have to distinguish between prophylaxis and prevention, and treatment.’
    • ‘Penicillin is the agent of choice for intrapartum antibiotic prophylaxis.’
    • ‘Routine use of antimicrobial prophylaxis or serologic testing after a tick bite is not recommended.’
    • ‘Physicians who have been exposed to a person known to have pertussis need antibiotic prophylaxis.’
    • ‘For this reason antibiotic prophylaxis during labour should be started as soon as possible after risk factors have been identified.’
    preventive treatment, prevention, protection
    View synonyms


Mid 19th century modern Latin, from pro-‘before’ + Greek phulaxis ‘act of guarding’.