I need to have some opinions on this, please. My doctor prescribed buspirone in addition to fluoxetine. He told me that the buspirone should start to work within 40 min. When I spoke with the pharmacist, I was told that it usually takes a week to start feeling the effect. I asked him again about the buspirone and he said that it does not have to build up in your system, like fluoxetine. I don't know what to believe. This is really causing me alot of anxiety. Does my doctor know what he is talking about? I like him as my doctor, but what he told me is not what the pharmacist said. So would you trust him?