I have been on Ambien 12.5 ER for about 3 years and have had no problems. Just turned 65 and found out that Medicare Part D insurance won't cover at all without Prior Authorization and then only for 90 days a year. I have anxiety problems and do not want to try alternatives which are more expensive than Ambien would be if they approved it. I also just learned that you can't use discount cards or coupons if you are over 65. I was wondering if there was any other way to make this more affordable.