the forum search facility identified these previous posts referring to Oxazepam:
https://forum.alzheimers.org.uk/search/30272591/?q=oxazepam&o=date&c[node]=56
There's lots of info on the internet. A quick google search found the following:
https://patient.info/medicine/oxazepam-for-anxiety
https://en.wikipedia.org/wiki/Oxazepam
https://bnf.nice.org.uk/drug/oxazepam.html
Hope this is useful.