Anemia is a very common symptom of Lupus, but according to the Lupus Org,
www.lupus.org/answers/entry/lupus-diagnostic-criteria, it is not one of the diagnostic symptoms.
Whatever medication she gave you is based on general knowledge and the labs from September --- with updated labs your Dr will be able to give you mediation directed more toward where you specifically are today. I would bet more targeted medication will help you more quickly.
Hang in there, and do what the Dr suggests!