Is it safe to combine oxazepam with lorazepam?

Safety of benzo: Benzodiazepine, the group that encompass Valium [diazepam], serax [oxazepam], Ativan [lorazepam] are very safe but not made to be used for a long time as they only treat symptoms while the main problem is left untreated. And a good doctor never prescribe those for more than 3 months. No sane doc would prescribe both Lorazepam and oxa together.