According to a new study by researchers at Harvard University, Brigham and Women’s Hospital and CVS Caremark, “Dispense as Written” Prescriptions costs the health care system up to $7.7 billion annually.
About 5 percent of prescriptions submitted by CVS Caremark Pharmacy Benefit Management (PBM) members in a 30-day period during 2009 included a “dispense as written” (DAW) designation. According to CVS Carmark, this “practice – whereby doctors or patients demand the dispensing of a specific brand-name drug and not a generic alternative – costs the health care system up to $7.7 billion annually, according to a new study by researchers at Harvard University, Brigham and Women’s Hospital and CVS Caremark. Moreover, these requests reduce the likelihood that patients actually fill new prescriptions for essential chronic conditions.”
The study reviewed 5.6 million prescriptions adjudicated by CVS Caremark for two million patients from January 1 to January 31, 2009. The review found that 2.7 percent of those prescriptions were designated DAW by doctors, while another two percent were requested DAW by patients.
If existing safe and effective generic alternatives had been provided in place of those brand-specific prescriptions, patients would have saved $1.7 million and health plans would have spent $10.6 million less for the medications. The researchers said that assuming a similar rate of DAW requests for the more than 3.6 billion prescriptions filled in the U.S. annually, patient costs could be reduced by $1.2 billion and overall health system costs could be reduced by $7.7 billion.
The study is a product of CVS Caremark’s previously announced three-year collaboration with Harvard University and Brigham and Women’s Hospital to research pharmacy claims data in order to better understand patient behavior, particularly around medication adherence. Annual excess health care costs due to medication non-adherence in the U.S. have been estimated to be as much as $290 billion annually.