Is it possible that there will be a shortage of dmards or biologics used for arthritis in the coronavirus pandemic?

Methotrexate Inj: There was a shortage of injectable methotrexate. I don't know of other disease-modifying anti-rheumatic drugs or biologics in short supply. This is a list of meds in short supply during pandemic: https://www.drugs.com/drug-shortages/

Maybe : It is potentially a possibility, but will ultimately depend on what upcoming research demonstrates.