Kidney failure, heart attacks, and strokes are complications of diabetes. Medicines called angiotensin-converting enzyme (ACE) inhibitors delay kidney failure and prevent heart attacks and strokes in persons with diabetes. However, many patients with diabetes who might benefit from ACE inhibitors do not take them. More diabetic patients might get ACE inhibitors if insurance paid the total costs of these drugs. Currently, Medicare, the U.S. health insurance program for senior citizens, does not pay for the total costs of ACE inhibitors. The average cost for generic ACE inhibitor treatment is about $233 per year. Currently, only 40% of Medicare beneficiaries take ACE inhibitors. The number of Medicare beneficiaries taking ACE inhibitors may increase when the new Medicare drug coverage policy starts in 2006, but many will still not be taking this drug because the costs are too high.