Session 2. Developing and Maintaining a Formulary - PowerPoint PPT Presentation

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Session 2. Developing and Maintaining a Formulary

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  1. Session 2. Developing and Maintaining a Formulary

  2. Define the formulary system concept Understand basic formulary management principles Describe the benefits of an effective formulary system Identify criteria used for selection of medicines Describe basic pharmaceutical information resources for evaluating medicines Objectives

  3. Introduction Formulary Management Principles Maintaining a Formulary System Process for Selecting New Medicines Selection Criteria for New Medicines Nonformulary Medicines Outline (1)

  4. Restricted Pharmaceutical Use International Nonproprietary Pharmaceutical Names Information Sources for Evaluating New Medicines Formulary Manual Activities Summary Outline (2)

  5. Key Definitions Formulary—A list of medicines approved for use in the healthcare system by authorized prescribers Formulary manual—The document that describes medicines that are available for use in a hospital or clinic (i.e., indications, dosage, length of treatment, interactions, precautions, and contraindications) Formulary system—A system of periodically evaluating and selecting medicines for theformulary, maintaining the formulary, and providing information in a suitable manual or list

  6. WHO Model Formulary (2004 and 2007)

  7. Benefits of an Effective Formulary System (1) Approved and efficacious medicines that all practitioners will have available for use Only the most effective and safest products Medicines have been evaluated systematically Medicines are chosen and approved to treat the diseases of the region or country Physicians develop greater experience with fewer medicines

  8. Benefits of an Effective Formulary System (2) Pharmaceutical therapy at lower cost Ineffective, high-cost medicines will be excluded from system Availability of most effective medicines leads to fewer visits, improved outcomes, and lower cost Reduced inventory cost

  9. Benefits of an Effective Formulary System (3) Consistent supply of medicines Regulating the number of medicines will improve procurement and inventory management Economies of scale will increase availability of essential medicines Saving money leads to consistency in purchasing essential medicines which in turn leads to increased availability

  10. Benefits of an Effective Formulary System—Summary SUPPLY Easier procurement Lower amount of stocks Improved quality assurance Easier dispensing PATIENT USE Focused education efforts Better compliance Improved availability PRESCRIBING More experience with fewer medicines Irrational alternatives not available Focused medicine information ADRs easier to manage COST Lower prices, more competition

  11. Select medicines on the basis of need (diseases and conditions that have been identified locally) Select “medicines of choice” Maintain a limited number of medicines (avoid duplications) Use INN (generic) names Use combination (fixed-dose) products only in specific proven conditions (e.g., tuberculosis) Formulary Management Principles (1)

  12. Use explicit selection criteria that include— Efficacy and effectiveness Safety Quality Cost Select medicines that are consistent with national and regional formularies and standard treatment guidelines Restrict medicines use to appropriate practitioners Formulary Management Principles (2)

  13. Evaluate new medicine requests and deletions regularly Conduct a systematic review of therapeutic groups and classes Maintaining a Formulary

  14. Steps to Add or Delete a New Medicine

  15. Steps to Evaluate a Medicine Compile information resources Perform evaluation using established criteria Write medicine monograph describing the evaluation and results Develop formulary recommendations to present to the DTC Obtain expert opinion and recommendations Make a decision at the DTC meeting Disseminate the results of the evaluation and DTC recommendations

  16. Disease patterns Efficacy and effectiveness Safety Quality (pharmaceutical products and suppliers) Criteria for Evaluating and Selecting Medicines for Formulary (1)

  17. Cost and cost-effectiveness of the medicine Well-known medicines Health system personnel and expertise available to manage the medicine Financial resources available to buy the medicine Criteria for Evaluating and Selecting Medicines for Formulary (2)

  18. Open formularies Closed formularies Management of nonformulary medicines Limit number of nonformulary medicines Limit access Keep a register of all requests for nonformulary medicines (medicine name, quantity, indication) Review frequently and discuss in DTC meetings Nonformulary Medicines

  19. Medicines to be used by specific staff or for specific conditions only Defined and enforced by the DTC Necessary to control the use of medicines that should only be used by medical staff with specialized skills Monitor carefully to ensure the appropriate use Restricted Medicines (1)

  20. Examples— Certain antimicrobials for infectious disease specialists Antipsychotic medicines for mental health professionals Antineoplastic products for oncologists and internal medicine specialists Restricted Medicines (2)

  21. Trade or brand names Disadvantages Nonproprietary or generic names Advantages in the health care system International Nonproprietary Names

  22. Primary Resources Secondary Resources Tertiary Resources Information Resources

  23. British Medical Journal Lancet New England Journal of Medicine Journal of the American Medical Association Annals of Internal Medicine American Journal of Health-System Pharmacists (AJHP) Primary Literature—Examples

  24. Secondary Literature—Examples Medical letters, newsletters, or bulletins produced by national bodies that monitor medicine efficacy, safety, and cost Medical Letter (USA), Drug & Therapeutics Bulletin (UK), The International Society of Drug Bulletins Peer-reviewed journals Australian Prescriber, Journal Watch, Prescrire Electronic databases MEDLINE and EMBASE abstracts International pharmaceutical abstracts Cochrane Library abstracts and evaluations

  25. Martindale: The Extra Pharmacopoeia British National Formulary USP DI Drug Information American Hospital Formulary Service (AHFS) Drug Information Tertiary Source—Examples

  26. British National Formulary

  27. MEDLINE World Health Organization Centers for Disease Control and Prevention National Institutes of Health U.S. Food and Drug Administration Cochrane Collaboration Agency for Healthcare Research and Quality Internet Resources—Examples

  28. Formulary Manual (1) Listing of formulary medicines Alphabetical Therapeutic category Medicine information section Generic name Dose and strengths Indications, contraindications, precautions Side effects Dosage schedule Instructions, warnings, interactions

  29. Formulary Manual (2) Supplementary information for medicines Price Regulatory category Storage guidelines Patient counseling information Labeling information Brand names and synonyms

  30. Formulary Manual (3) Prescribing and dispensing guidelines Rational prescribing techniques Prescription writing principles Guidelines on quantities to be dispensed Controlled medicine requirements ADR reporting requirements Dispensing guidelines List of precautionary labels Medicine interaction tables

  31. Formulary Manual (4) Treatment protocols IV medication administration guidelines Medicines used in pregnancy and lactation Medicines used in renal failure Poison guidelines Prescribing for the elderly

  32. Formulary Manual (5) Other components Metric tables ADR reporting form Product quality reporting form Request form for adding or deleting medicines Request form to use nonformulary medicines Abbreviations Indexes

  33. Formulary Manual (6) Acceptance of a formulary manual requires buy in by— Opinion leaders Hospital administration Senior staff Professional associations Manuals must be prepared carefully Evidenced-based information Written by experts Reviewed frequently to be kept up to date

  34. Examples of Rational Drug Selection, Delhi, India* The essential medicines list (EML) was developed by a multidisciplinary group of experts using criteria of efficacy, safety, and cost Revised EML saved nearly 30% of money which was used for procuring more medicines resulting in an 80% improved availability in health facilities

  35. Activity 1. Adding a New Antibiotic to the Formulary Your DTC received an application to add cefapime to the hospital formulary. See Participants’ Guide for more information about this new drug and its use. What criteria are necessary to evaluate this medicine for addition to the formulary? Using the principles of formulary management, what major concerns do you have before adding this medicine to the formulary? What pharmaceutical information resources would be used to analyze this medicine for the DTC? Which sources would be the most useful?

  36. Activity 2. Formulary Management of NSAIDs Review the list of nonsteroidal anti-inflammatory drugs provided in the Participants’ Guide Do you think the listed medicines appear logical and well chosen? How many chemical entities are available on the formulary? How many NSAID medicines are necessary for a formulary? What medicines would you recommend to be added or deleted? What is the best method to list medicines in a formulary? Is this list easy to read and understand?

  37. Summary (1) Formulary management principles Select medicines on the basis of need (diseases and conditions that have been identified locally) Select “medicines of choice” Avoid duplications and use INN (generic) names Use combination (fixed-dose) products only in specific proven conditions (e.g., TB)

  38. Summary (2) Formulary management principles (con’t) Evaluate and select new medicines according to agreed-upon explicit criteria (including efficacy, safety, quality, cost) Ensure consistency between the formulary list and the recommended standard treatment guidelines Regularly review and update the formulary Monitor and control the use of nonformulary medicines Restrict medicines to use by appropriate practitioners

  39. Summary (3) Maintain reliable resources (human, financial, references) for evaluating medicines Keep the formulary process ethically correct and transparent Enlist support of key policy makers and influential health professionals to advocate for the DTC and the formulary system