Should Theu.s. Institute A National Essential Medicine List? Describe Advantage?

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In your opinion, should the U.S. institute a national essential medicine list? Describe advantage(s) or disadvantage(s) of a national EML to support your argument.
Essential medicines are those that satisfy the priority health needs of the population, selected in regards to disease prevalence, efficacy evidence, safety and comparative cost effectiveness.1 90% of the most common and prevalent diseases can be treated with approximately 10% of the available drugs.2 The World Health Organization (WHO) has estimated that half of all medicines are inappropriately prescribed, dispensed, sold, or taken.3 As a provider in primary care medicine, the idea of an essential medicine list would appear to be a welcome addition, simplifying treatment
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When admitted to the hospital they are placed on esomeprazole (Nexium) as that is on the hospital formulary. If the discharge physician is not astute, the patient then gets sent home with a prescription for esomeprazole which is not preferred on their insurance and hence not covered, creating confusion with patients, pharmacy staff and primary care providers. As a prescriber it also becomes difficult to know which medications are recommended by each payer. A basic essential medicine list may allow for more simplified ease of use for all involved.

Many organizations have developed practice guidelines for a myriad of clinical scenarios which include the use of specific drugs or classes of medications, typically in a step-wise pattern. These “Best Practice” guidelines are built on evidence based criteria and systematic reviews. It has been shown that these clinical guidelines, with their list of essential medications, improve the quality of care and lead to better outcomes, but have not been shown to reduce costs.4,5 The practice of medicine has moved dramatically towards the use of these guidelines in recent years. For example, best practices for diabetic care recommends that all patients be placed on an ACE (angiotensin converting enzyme) inhibitor or ARB (angiotensin receptor blocker) for prevention of diabetic nephropathy and a statin for prevention of coronary artery disease. However, each patient’s insurance may cover a different medication in this class
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