Opinions - which SSRI to support mild post-w/d problems?

[0utrider]

hi
SWIM is looking, after detoxing with iboga and staying clean for close to a year for some kind of AD that supports him with the occasional craving/negative thought from "back then" as well as supports him during his pretty demanding new job & life.
He is looking for an AD that can be only mildly effective, but is especially keen on avoiding major side-effects, namely weight-gain and sweats. So is there any AD out there, that is not as likely to give these effects? He wants an SSRI. he was thinking maybe prozac ?
its kind of like a woody-allen thing, having crutches to support him in his life. its not like he has a major depression though. just at times life really hits him hard.