Anxiety Medicines

Unfortunately the stress leading up to and following treatment has had devastating emotional effects on my wife Linda. She is now taking the regular chemo/anti-nausea drugs and Lorazepam for combination nausea/anxiety. The AD drugs keep her afloat. There is an anti-depressant prescribed that she's started but is nervous about. Also getting some counseling/therapy. Anyone have experience with anti-anxiety meds? Any advice? They do seem to help her.