my primary MD & I have discussed me trying Wellbutrin for a short period to help boost my energy and reduce fog. The issue: she wnats to start me on the lowest possible sustained release dose (say 100-150mg/day). But she is not certain if there are any 50-75 mg sustained release doses. She think Wellbutrin must be taken in at least 2 doses to maintain its blood levels. I've searched on the web -- I've found 75mg doses -- but its not clear if those are sustained release pills. To those who are on it: what is your dosing levels and how often do you take it? Any help appreciated.