@inga71 So I asked my AI tool, MS Copilot "what are the DMARD medications used to treat PMR?" and this is what it told me.

Methotrexate, csDMARD, First‑line steroid‑sparing agent
Leflunomide, csDMARD, Possible alternative - limited data
Sarilumab, Biologic (IL‑6), FDA‑approved for refractory PMR
Tocilizumab, Biologic (IL‑6), Off‑label, strong evidence
JAK inhibitors, Targeted synthetic, Experimental
Rituximab, Biologic, Experimental

I thought Tocilizumab was FDA approved to treat PMR so I asked "What drugs are FDA approved to treat PMR?' Answer -
Only two drugs are FDA‑approved for PMR - Prednisone (Rayos®) and Sarilumab (Kevzara®)

Hope this information helps you. I have found the AI tool I use to be invaluable to do much of my online research. Simple searches on search engines are a pay-to-play so the businesses that pay the most get to show up at the top of the search results. This is not true with AI engines. I will caution that I have found errors with the AI engine - not often. I fact check my AI Engine if I am suspicious. Trust yet verify.