I am a senior citizen. I have dealt with many different prescription insurance companies in my lifetime. I got on Express Scripts the first of January 2024. Since then I have had more problems with them by far than any other prescription insurance company ever! It takes several calls and escalations to get anything fixed or corrected. They ask for a preauthorization for every new prescription my doctor writes and I don't find out about it until I get to the pharmacy. Then the pre authorizations don't get transmitted but they say the did or sometimes they say one was never processed and it takes several escalations to try to get my medicines which I have never had to go through before my entire life. Several of the problems still haven't been resolved after several tries and I am going without maintenance medications I have been taking for years! If you have any other choice in prescription insurance, for the love of everything Holy, don't use Express Scripts!