Joyce,
It seems that because Rhodiola is such a newly discovered natural medicine, it has not yet been added to the Drug Digest interactions database at :
http://www.drugdigest.org/DD/Interaction/C...1,4109,,00.html .
My reco would be to give your prescribing doctor a call and let him/her know you'd like to try this supplement as a complementary medicine. I'd imagine the doc would be cool with that. It is, afterall, completely natural and the incidence of side effects for Rhodiola are almost non-existent.
Learn more about Rhodiola Rosea Side Effects HereSL