Common behaviors of patients taking prescription drugs, such as forgetfulness and procrastination, may result in wasteful spending of $163 billion annually, according to the recently released 2009 Drug Trend Report from Express Scripts. This expense is related to 3 key factors: $106 billion from medical costs of nonadherence to therapy; $51 billion in missed opportunities related to lower-cost medication alternatives, both brand-name and generic; and $6 billion in missed opportunities related to lower-cost options for delivery of medications.