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An antimicrobial stewardship program (ASP) is a set of coordinated interventions designed to improve and measure the appropriate use of antimicrobial agents by promoting selection of the optimal antimicrobial drug regimen, including dosing, duration of therapy and route of administration.1

The effective use of antimicrobials is important for minimizing the unintended consequences of inappropriate use, controlling antibiotic-resistant organisms and reducing selection for Clostridium difficile. Below are links to resources, presentations and tools to assist institutions in developing and sustaining a successful ASP.


The following posters have been developed to promote appropriate prescribing in hospital settings. The posters can be downloaded, printed and placed in common areas to assist doctors, nurses and pharmacists.




Antibiotic resistance is a growing public health threat. Residents of long-term care homes (LTCHs) are particularly susceptible to the harmful effects of antibiotics. This infographic presents highlights from recent literature examining antibiotic use in LTCHs and provides recommendations on how to reduce this risk for residents.


Frequently asked questions


Questions and answers related to Antimicrobial Stewardship programs, including their implementation, interventions, methods of measuring outcomes and other ASP topics.




Ontario Antimicrobial Stewardship Program (ASP) Landscape Survey

This presentation provides the aggregate results of the PHO Ontario ASP Landscape survey. This voluntary survey of hospitals in Ontario was conducted in the Fall 2016 for the purpose of gaining a better understanding of how the landscape of antimicrobial stewardship in Ontario healthcare facilities has evolved since 2013 and to help PHO identify priority areas for further advancing antimicrobial stewardship across the province.

How to Make a Business Case for an Antimicrobial Stewardship Program?

This presentation provides guidelines to make a hospital business case for an ASP. Cost savings are not the primary goal of ASPs but the cost efficiencies associated with ASPs are a useful argument when developing a business case for hospitals.

ASP 101: What is Antimicrobial Stewardship?


This presentation:

  • describes the rationale for antimicrobial stewardship
  • defines antimicrobial stewardship and its goals
  • identifies the important aspects of an ASP
  • discusses the evidence supporting ASP
  • provides a few 'real world' examples of antimicrobial stewardship
ASP 101: The Basics or “How to get your ASP off the ground”


This presentation will help you:

  • Organize the basic structure & function of an ASP
  • Know the essential elements of a business case/project charter to initiate an ASP
Where the Rubber Hits the Road: Real-life antibiotic stewardship scenarios 


Presentation objectives:
  • Discuss common clinical scenarios that lend themselves to ASP interventions
  • Construct a practical toolbox of ASP interventions
  • Recognize the limitations of antimicrobial stewardship


Antimicrobial Stewardship: Moving Knowledge to Action Workshops, 2014


From May to June 2014, PHO hosted a series of workshops in Burlington, Sudbury, St. Mary’s and Windsor. The objective was to provide support to organizations in developing, growing, or sustaining their ASP efforts. 


Metrics and Evaluation

Antimicrobial Stewardship: Metrics and Evaluation


This presentation identifies:

  • The importance of metrics
  • Challenges in measurement
  • Selecting metrics
  • Metric options
Metric examples


There are advantages and disadvantages to every metric used in antimicrobial stewardship programs (ASPs). This chart identifies examples but demonstrates there is no single best metric.


Resources and Guidelines

Guidelines and Position Statements
Gap Analysis Checklists


Use this checklist if you have:

  • no ASP in place to gauge activities you may currently be performing OR
  • a functioning ASP with administrative controls in place

After completing the checklist, you may decide your facility has the necessary ASP elements in place or it may need to implement additional elements.


Making Good Antibiotic Choices: Sometimes Less is More ( November 4, 2015 )


This webcast highlights approaches to limit unnecessary antimicrobial use and factors influencing physician prescribing. After this session, participants should be able to identify common conditions that are unnecessarily treated with antimicrobials, list examples of common infections that have evidence for shorter treatment durations and understand approaches to influence antimicrobial prescribing. Speakers:

Dr. Giulio DiDiodato
IPAC Physician
Public Health Ontario


1. Society for Healthcare Epidemiology of America; Infectious Diseases Society of America; Pediatric Infectious Diseases Society. Policy statement on antimicrobial stewardship by the Society for Healthcare Epidemiology of America (SHEA), the Infectious Diseases Society of America (IDSA), and the Pediatric Infectious Diseases Society (PIDS). Infect Control Hosp Epidemiol. 2012; 33(4):322-7.
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Page last updated: 2017-06-14 4:19 PM
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