They don't make Welbutrin IR in doses above 100. It is strange that they didn't just give you SR or XL. My psychiatrist started me off with XL but I asked to try IR because I am having insomnia issues. However, he told me to take it all in the morning while I thought IR is supposed to be taken multiple times a day. Yesterday was the first day of my period and I spent all morning feeling like I was about to pass out, really woozy. It's about the 2 week mark from when I started taking IR and I'm just suspicious that waking up and taking 150mg Welbutrin IR, 10mg Adderal and 50mg caffeine all at once isn't a good idea. I need the other two to get up so on my own I'm trying 100 Welbutring IR, 10 mg Adderal and 50 mg caffeine and taking the other 50mg of Welbutrin at lunch. This may bring the insomnia back though. We'll see. I just wonder if anyone else has ever bee ntold to take all of their IR all at once in the morning like we were.